JDBC访问DB2,参数正确,但是提示SQLCODE=-204, SQLSTATE=42704,

小瑞 2009-11-26 10:26:24

Class.forName("com.ibm.db2.jcc.DB2Driver");

Connection conn = getconn("jdbc:db2://127.0.0.1:50000/TESTRA", "TEST", "123456");

ResultSet rs = stmt.executeQuery("select *from TB_ADMIN ");


错误提示:

Exception in thread "main" com.ibm.db2.jcc.a.bn: DB2 SQL Error: SQLCODE=-204, SQLSTATE=42704, SQLERRMC=TEST.TB_ADMIN, DRIVER=3.51.90


分析:
-204
42704
没有定义的对象名
需要查 DB2ADMIN这个schema下,是否有TB_ADMIN这个表。

但是我现在的schema名称都是RA
数据库名称是TESTRA
用户名是TEST
密码123456

使用toad工具查看发现数据库中表是这样的,toad使用上述参数是可以正常连接访问的,
"RA"."TB_ADMIN",是schema为打头的,我的JDBC组合中为什么变成了用户名打头呢TEST.TB_ADMIN,?

还需要有什么特殊的设置么?

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l280163196 2011-09-01
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lai xuexi
wenshaoji168 2011-07-27
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很好很强悍~
yuntaos2005 2011-07-20
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我也遇到了此问题
AbsurdLife 2010-12-03
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好麻烦啊。
AbsurdLife 2010-12-03
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我也有如此问题,但改来改去就是不成功,那位大侠能帮帮我啊?
http://topic.csdn.net/u/20101203/12/a156a5d3-1591-4a55-911c-679f9dd31602.html?seed=1618726193&r=70326641#r_70326641
louis960 2010-10-10
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定一下啊
xibeijianA 2010-08-15
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顶一下,刚好有此问题
jackterq 2010-04-22
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似是而非....
phantom3 2010-04-21
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学习xia
杨_飞 2010-03-11
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在线等...
各位大仙帮帮
杨_飞 2010-03-11
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com.ibm.db2.jcc.c.SqlException: DB2 SQL error: SQLCODE: -204, SQLSTATE: 42704, SQLERRMC: TESTDB2.DB2TEST
at com.ibm.db2.jcc.c.fg.e(fg.java:1596)
at com.ibm.db2.jcc.c.fg.a(fg.java:1206)
at com.ibm.db2.jcc.b.gb.g(gb.java:140)
at com.ibm.db2.jcc.b.gb.a(gb.java:39)
at com.ibm.db2.jcc.b.w.a(w.java:34)
at com.ibm.db2.jcc.b.vb.g(vb.java:139)
at com.ibm.db2.jcc.c.fg.n(fg.java:1177)
at com.ibm.db2.jcc.c.gg.eb(gg.java:1862)
at com.ibm.db2.jcc.c.gg.d(gg.java:2295)

请问真是什么错?
at com.ibm.db2.jcc.c.gg.V(gg.java:424)
at com.ibm.db2.jcc.c.gg.executeQuery(gg.java:407)
at jndi.JNDITest.main(JNDITest.java:29)
happyruomu 2010-03-04
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侃侃而谈看侃侃而谈看侃侃而谈看侃侃而谈看
小瑞 2009-11-28
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现在100分了,欢迎大家踊跃发表意见啊
小瑞 2009-11-28
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[Quote=引用 9 楼 liyan93834183 的回复:]
ResultSet rs = stmt.executeQuery("select *from DB2ADMIN.TB_ADMIN ");
改成这样

[/Quote]


Connection conn = getconn("jdbc:db2://127.0.0.1:50000/TEST", "db2admin", "198411");
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("select *from TEST.SC");


测试成功,4楼和9楼正解,多谢,呵呵
等几天结贴,我再加50分感谢,呵呵,20分不能表达我的感谢哈
ProgrammerNO1 2009-11-28
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貌似LS正确,LZ结果怎样了
小瑞 2009-11-28
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恩,试试哈
liyan93834183 2009-11-28
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ResultSet rs = stmt.executeQuery("select *from DB2ADMIN.TB_ADMIN ");
改成这样
crazylaa 2009-11-28
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解决了啊?jf
老张-AI 2009-11-27
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[Quote=引用 3 楼 xiaxiaorui2003 的回复:]
Java codepublicstaticvoid main(String[] args) {
String sDBDriver="com.ibm.db2.jcc.DB2Driver";
String sConnDataBase="jdbc:db2://127.0.0.1:50000/TESTRA";

Properties properties=new Properties();
properties.setProperty("user","TEST");
properties.setProperty("password","198411");
properties.setProperty("currentSchema","RA");

Connection con;

Statement stmt;
ResultSet rs;try {
Class.forName(sDBDriver);
con= DriverManager.getConnection(sConnDataBase, properties);

stmt= con.createStatement();
rs= stmt.executeQuery("select * from TB_ADMIN");while(rs.next()){
System.out.println("F1="+ rs.getString(1)+""+rs.getString(2)+""+rs.getString(3)+""+rs.getString(4)+""+rs.getString(5)+""+rs.getString(6)+""+rs.getString(7));
}

rs.close();
stmt.close();
con.close();

}catch(Exception e) {
e.printStackTrace();
}
}

这样子就可以查出来,需要加入用户的schema
[/Quote]


需要加入用户的schema可以查出来了
怎么了啊
utf_8ufw 2009-11-27
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是不是你的Test用户没有对TB_ADMIN表的操作权限
加载更多回复(5)
PART I – 概览.........................................................................................................................11 第 1章 – DB2 Express-C是什么?..........................................................................................13 1.1免费开发、部署和分发… 无限制!...............................................................................13 1.2用户帮助和技术支持.....................................................................................................14 1.3 DB2服务器..................................................................................................................14 1.4 DB2客户端和驱动........................................................................................................14 1.5 应用程序开发的自由性.................................................................................................15 1.6 DB2 版本号与 DB2 版本分类........................................................................................16 1.7升级到其它的 DB2版本................................................................................................16 1.8 DB2 Express-C的维护.................................................................................................16 1.9相关免费软件................................................................................................................17 1.9.1 IBM数据工作室(Data Studio)...........................................................................17 1.9.2 DB2 Net Search Extender .....................................................................................17 1.9.3 Starter Toolkit for DB2 on Rails.............................................................................17 1.9.4 Web 2.0 Starter Toolkit for DB2 ............................................................................17 1.9.5 WebSphere Application Server – Community Edition............................................18 第 2章 – DB2相关特性和产品................................................................................................19 2.1 DB2 Express-C订购中包含的功能...............................................................................22 2.1.1 Fix packs补丁包...................................................................................................22 2.1.2高可用性灾难恢复(HADR) ................................................................................22 2.1.3数据复制(Data Replication)...............................................................................22 2.2 DB2 Express-C所不具备的功能...................................................................................23 2.2.1数据库分区............................................................................................................23 2.2.2连接集中器(Connection Concentrator ).............................................................23 2.2.3 Geodetic Extender ................................................................................................23 2.2.4工作负载管理(Workload Management, WLM) .......................................................24 2.3 DB2相关收费产品........................................................................................................24 2.3.1 DB2连接(DB2 Connect)...................................................................................24 2.3.2 WebSphere Federation Server..............................................................................24 2.3.3 WebSphere Replication Server .............................................................................25 第 3章 – 安装 DB2..................................................................................................................27 3.1安装前提条件................................................................................................................27 3.2操作系统中的安装权限.................................................................................................27 3.3安装向导.......................................................................................................................27 3.4自动安装.......................................................................................................................31 实验 #1 安装DB2 Express-C,创建 SAMPLE数据库........................................................32 第 4章 – DB2的应用环境.......................................................................................................35 实验 #2 - 创建一个新的数据库............................................................................................43 4.1 DB2配置......................................................................................................................44 4.1.1 环境变量................................................................................................................44 4.1.2 数据库管理器配置文件(dbm cfg) ...........................................................................44 4.1.3 数据库配置文件(db cfg)....................................................................................46 4.1.4 DB2 概要文件注册表.............................................................................................47 4.2 DB2管理服务器...........................................................................................................48 实验 #3 – 实例、数据库和配置管理....................................................................................49 第 5章 – DB2工具..................................................................................................................51 5.1控制中心(Control Center).........................................................................................52 5.2命令编辑器(Command Editor) .................................................................................55 5.3 SQL帮助向导(SQL Assist Wizard ).........................................................................57 5.4 显示SQL按钮..............................................................................................................58 实验 #4 使用脚本填充EXPRESS数据库...........................................................................59 5.5 脚本..............................................................................................................................60 5.5.1 SQL脚本...............................................................................................................60 5.5.2操作系统(shell)脚本..........................................................................................61 实验 #5 为EXPRESS数据库创建一个安装脚本.................................................................62 5.6任务中心(Task Center )...........................................................................................65 5.6.1工具目录(Tools Catalog)数据库........................................................................65 5.7 日志(Journal)...........................................................................................................66 5.8运行状况监视器(Health Monitor ).............................................................................67 5.8.1运行状况中心(Health Center )...........................................................................68 PART II – DB2 Express-C 数据库管......................................................................................71 第 6章 – DB2体系结构...........................................................................................................73 6.1 DB2进程模型...............................................................................................................73 6.2 DB2内存模型...............................................................................................................74 6.3 DB2存储模型...............................................................................................................75 6.3.1数据页和扩展数据块..............................................................................................75 6.3.2缓冲池...................................................................................................................76 6.3.3表空间...................................................................................................................77 第 7章 – DB2 客户端的连接....................................................................................................81 7.1 DB2 目录......................................................................................................................81 7.2 配置助手(Configuration Assistant )..........................................................................82 7.2.1服务器端的安装要求..............................................................................................82 7.2.2 Setup required at the client 客户端的安装要求......................................................84 7.2.3建立客户端与服务器端概要文件............................................................................87 实验 #6 使用配置助手........................................................................................................90 第 8章 – 数据库对象...............................................................................................................93 8.1 模式..............................................................................................................................93 8.2表.................................................................................................................................93 8.2.1数据类型................................................................................................................93 8.2.2标识列...................................................................................................................96 8.2.3序列对象................................................................................................................96 8.2.4系统目录表............................................................................................................97 8.2.5已声明临时表.........................................................................................................97 实验 #7 创建一个数据表.....................................................................................................99 8.3视图............................................................................................................................101 8.4索引............................................................................................................................101 8.4.1 Design Advisor ....................................................................................................101 8.5参照完整性.................................................................................................................102 第 9章 – 数据迁移工具..........................................................................................................105 9.1 导出(EXPORT)工具...............................................................................................106 9.2 导入(IMPORT)工具................................................................................................106 9.3 使用 LOAD来导入......................................................................................................107 9.4 db2move 工具...........................................................................................................108 9.5 db2look 工具..............................................................................................................109 实验 #8 导出EXPRESS数据库的DDL............................................................................111 第 10章 – 数据库安全...........................................................................................................115 10.1 认证..........................................................................................................................116 10.2 授权..........................................................................................................................116 10.3 DBADM权限............................................................................................................118 10.4 PUBLIC 组...............................................................................................................119 10.5 GRANT和REVOKE语句 ........................................................................................119 10.6 查看授权和特权........................................................................................................119 10.7 关于组特权...............................................................................................................121 实验 #9 授予和撤销用户的权限........................................................................................122 第 11章 – 备份和恢复...........................................................................................................125 11.1 数据库的日志记录....................................................................................................125 11.2 日志的类型...............................................................................................................126 11.3 日志记录的类型.......................................................................................................126 11.3.1 循环日志记录 ....................................................................................................126 11.3.2 档案日志记录和日志保留...................................................................................127 11.4 从控制中心进行数据库日志记录...............................................................................127 11.5 日志记录的参数........................................................................................................129 11.6 数据库备份...............................................................................................................129 实验 #10 – 安排一个备份计划..........................................................................................131 11.7 数据库恢复...............................................................................................................133 11.7.1 恢复类型............................................................................................................133 11.7.2 数据库恢复........................................................................................................133 11.8 其他关于备份和恢复的操作......................................................................................134 第 12章 – 维护任务...............................................................................................................135 12.1 重组(REORG)、运行统计(RUNSTATS)、重绑定(REBIND).......................135 12.1.1重组(REORG)命令........................................................................................135 12.1.2运行统计(RUNSTATS)命令 ..........................................................................136 12.1.3 绑定/重新绑定.................................................................................................136 12.1.4 在控制中心执行维护工作...................................................................................137 12.2 维护方式...................................................................................................................139 实验#11 – 配置自动维护.................................................................................................141 第 13章 – 并行与锁定...........................................................................................................143 13.1 事务(Transactions)..............................................................................................143 13.2 并行(Concurrency) ..............................................................................................143 13.3无并行控制导致的问题 .............................................................................................144 13.3.1丢失更新(Lost update)..................................................................................145 13.3.2未落实的读(Uncommitted read)....................................................................145 13.3.3不可重复读(Non-repeatable read).................................................................146 13.3.4幻象(Phantom read)......................................................................................146 13.4隔离级别(Isolation Levels)...................................................................................147 13.4.1未落实的读........................................................................................................147 13.4.2游标稳定性........................................................................................................147 13.4.3读稳定性............................................................................................................148 13.4.4可重复读............................................................................................................148 13.4.5隔离级别对比.....................................................................................................148 13.4.6设定隔离级别.....................................................................................................149 13.5锁定升级...................................................................................................................150 13.6锁定监视...................................................................................................................151 13.7锁定等待...................................................................................................................151 13.8死锁的引发与侦测.....................................................................................................152 13.9并行与锁定的最佳实践:..........................................................................................153 PART III – DB2 Express-C应用程序开发............................................................................155 第 14章 –SQL PL 存储过程..................................................................................................157 14.1 IBM数据工作室(Data Studio)..............................................................................158 14.1.2在Data Studio中创建一个存储过程..................................................................159 14.2 SQL PL 存储过程基础..............................................................................................161 14.2.1存储过程的结构.................................................................................................161 14.2.2 可选的存储过程属性..........................................................................................162 14.2.3参数...................................................................................................................162 14.2.4 SQL PL存储过程中的注释................................................................................163 14.2.5 复合语句............................................................................................................163 14.2.6 变量声明............................................................................................................163 14.2.7 赋值语句............................................................................................................164 14.3 游标..........................................................................................................................164 14.4 流控制......................................................................................................................164 14.5 调用存储过程 ...........................................................................................................165 14.6 错误和情况处理器....................................................................................................166 14.7 动态SQL..................................................................................................................168 第 15章 – 直接插入 SQL 过程语言、触发器、用户定义函数(UDF)..................................169 15.1直接插入SQL PL .....................................................................................................169 15.2 触发器(Trigger)....................................................................................................170 15.2.1 触发器的类型 ....................................................................................................170 实验 #12 从控制中心创建一个触发器...............................................................................174 15.3 用户定义函数 (UDF).................................................................................................177 15.3.1 标量函数(Scalar function).............................................................................177 15.3.2 表函数(Table function)..................................................................................178 实验 #13 使用IBM Data Studio创建用户定义函数(UDF)............................................179 第 16章 – DB2 pureXML......................................................................................................181 16.1 在数据库中使用XML................................................................................................181 16.2 XML数据库..............................................................................................................182 16.2.1 启用 XML的数据库............................................................................................182 16.2.2 原生 XML数据库...............................................................................................182 16.3 DB2中的XML..........................................................................................................183 16.3.1 pureXML 技术优势............................................................................................184 16.3.2 XPath基础........................................................................................................185 16.3.3 XQuery的定义..................................................................................................188 16.3.4 插入 XML文档...................................................................................................189 16.3.5 查询 XML数据...................................................................................................191 16.3.6 使用 SQL/XML执行联合操作............................................................................196 16.3.7 使用 XQuery执行联合操作................................................................................196 16.3.8 更新与删除操作.................................................................................................197 16.3.9 XML 索引.........................................................................................................198 实验 #14 - SQL/XML 和 XQuery.......................................................................................200 第 17章 – 使用 Java、PHP和 Ruby进行数据库应用开发...................................................201 17.1 Java应用程序开发...................................................................................................201 17.1.1 JDBC类型 2驱动程序.......................................................................................201 17.1.2 JDBC类型 4驱动程序.......................................................................................202 17.2 PHP应用程序开发...................................................................................................203 17.2.1 DB2为PHP提供的连接选项.............................................................................203 17.2.2 Zend Core for IBM.............................................................................................204 17.3 Ruby on Rails应用程序开发.....................................................................................206 17.3.1 Startup Toolkit for DB2 on Rails ........................................................................206 附录 A — 排除故障...............................................................................................................207 A.1 查找错误代码的更多信息...........................................................................................207 A.2 SQLCODESQLSTATE .........................................................................................208 A.3 DB2 管理通知日志.....................................................................................................208 A.4 db2diag.log................................................................................................................209 A.5 CLI追踪.....................................................................................................................209 A.6 DB2缺陷与补丁.........................................................................................................209 参考资源 ...............................................................................................................................210 网站..................................................................................................................................210 书籍..................................................................................................................................211
资源简介 第 1章 – DB2 Express-C是什么?..........................................................................................13 1.1免费开发、部署和分发… 无限制!...............................................................................13 1.2用户帮助和技术支持.....................................................................................................14 1.3 DB2服务器..................................................................................................................14 1.4 DB2客户端和驱动........................................................................................................14 1.5 应用程序开发的自由性.................................................................................................15 1.6 DB2 版本号与 DB2 版本分类........................................................................................16 1.7升级到其它的 DB2版本................................................................................................16 1.8 DB2 Express-C的维护.................................................................................................16 1.9相关免费软件................................................................................................................17 1.9.1 IBM数据工作室(Data Studio)...........................................................................17 1.9.2 DB2 Net Search Extender .....................................................................................17 1.9.3 Starter Toolkit for DB2 on Rails.............................................................................17 1.9.4 Web 2.0 Starter Toolkit for DB2 ............................................................................17 1.9.5 WebSphere Application Server – Community Edition............................................18 第 2章 – DB2相关特性和产品................................................................................................19 2.1 DB2 Express-C订购中包含的功能...............................................................................22 2.1.1 Fix packs补丁包...................................................................................................22 2.1.2高可用性灾难恢复(HADR) ................................................................................22 2.1.3数据复制(Data Replication)...............................................................................22 2.2 DB2 Express-C所不具备的功能...................................................................................23 2.2.1数据库分区............................................................................................................23 2.2.2连接集中器(Connection Concentrator ).............................................................23 2.2.3 Geodetic Extender ................................................................................................23 2.2.4工作负载管理(Workload Management, WLM) .......................................................24 2.3 DB2相关收费产品........................................................................................................24 2.3.1 DB2连接(DB2 Connect)...................................................................................24 2.3.2 WebSphere Federation Server..............................................................................24 2.3.3 WebSphere Replication Server .............................................................................25 第 3章 – 安装 DB2..................................................................................................................27 3.1安装前提条件................................................................................................................27 3.2操作系统中的安装权限.................................................................................................27 3.3安装向导.......................................................................................................................27 3.4自动安装.......................................................................................................................31 实验 #1 安装DB2 Express-C,创建 SAMPLE数据库........................................................32 第 4章 – DB2的应用环境.......................................................................................................35 实验 #2 - 创建一个新的数据库............................................................................................43 4.1 DB2配置......................................................................................................................44 4.1.1 环境变量................................................................................................................44 4.1.2 数据库管理器配置文件(dbm cfg) ...........................................................................44 4.1.3 数据库配置文件(db cfg)....................................................................................46 4.1.4 DB2 概要文件注册表.............................................................................................47 4.2 DB2管理服务器...........................................................................................................48 实验 #3 – 实例、数据库和配置管理....................................................................................49 第 5章 – DB2工具..................................................................................................................51 5.1控制中心(Control Center).........................................................................................52 5.2命令编辑器(Command Editor) .................................................................................55 5.3 SQL帮助向导(SQL Assist Wizard ).........................................................................57 5.4 显示SQL按钮..............................................................................................................58 实验 #4 使用脚本填充EXPRESS数据库...........................................................................59 5.5 脚本..............................................................................................................................60 5.5.1 SQL脚本...............................................................................................................60 5.5.2操作系统(shell)脚本..........................................................................................61 实验 #5 为EXPRESS数据库创建一个安装脚本.................................................................62 5.6任务中心(Task Center )...........................................................................................65 5.6.1工具目录(Tools Catalog)数据库........................................................................65 5.7 日志(Journal)...........................................................................................................66 5.8运行状况监视器(Health Monitor ).............................................................................67 5.8.1运行状况中心(Health Center )...........................................................................68 PART II – DB2 Express-C 数据库管......................................................................................71 第 6章 – DB2体系结构...........................................................................................................73 6.1 DB2进程模型...............................................................................................................73 6.2 DB2内存模型...............................................................................................................74 6.3 DB2存储模型...............................................................................................................75 6.3.1数据页和扩展数据块..............................................................................................75 6.3.2缓冲池...................................................................................................................76 6.3.3表空间...................................................................................................................77 第 7章 – DB2 客户端的连接....................................................................................................81 7.1 DB2 目录......................................................................................................................81 7.2 配置助手(Configuration Assistant )..........................................................................82 7.2.1服务器端的安装要求..............................................................................................82 7.2.2 Setup required at the client 客户端的安装要求......................................................84 7.2.3建立客户端与服务器端概要文件............................................................................87 实验 #6 使用配置助手........................................................................................................90 第 8章 – 数据库对象...............................................................................................................93 8.1 模式..............................................................................................................................93 8.2表.................................................................................................................................93 8.2.1数据类型................................................................................................................93 8.2.2标识列...................................................................................................................96 8.2.3序列对象................................................................................................................96 8.2.4系统目录表............................................................................................................97 8.2.5已声明临时表.........................................................................................................97 实验 #7 创建一个数据表.....................................................................................................99 8.3视图............................................................................................................................101 8.4索引............................................................................................................................101 8.4.1 Design Advisor ....................................................................................................101 8.5参照完整性.................................................................................................................102 第 9章 – 数据迁移工具..........................................................................................................105 9.1 导出(EXPORT)工具...............................................................................................106 9.2 导入(IMPORT)工具................................................................................................106 9.3 使用 LOAD来导入......................................................................................................107 9.4 db2move 工具...........................................................................................................108 9.5 db2look 工具..............................................................................................................109 实验 #8 导出EXPRESS数据库的DDL............................................................................111 第 10章 – 数据库安全...........................................................................................................115 10.1 认证..........................................................................................................................116 10.2 授权..........................................................................................................................116 10.3 DBADM权限............................................................................................................118 10.4 PUBLIC 组...............................................................................................................119 10.5 GRANT和REVOKE语句 ........................................................................................119 10.6 查看授权和特权........................................................................................................119 10.7 关于组特权...............................................................................................................121 实验 #9 授予和撤销用户的权限........................................................................................122 第 11章 – 备份和恢复...........................................................................................................125 11.1 数据库的日志记录....................................................................................................125 11.2 日志的类型...............................................................................................................126 11.3 日志记录的类型.......................................................................................................126 11.3.1 循环日志记录 ....................................................................................................126 11.3.2 档案日志记录和日志保留...................................................................................127 11.4 从控制中心进行数据库日志记录...............................................................................127 11.5 日志记录的参数........................................................................................................129 11.6 数据库备份...............................................................................................................129 实验 #10 – 安排一个备份计划..........................................................................................131 11.7 数据库恢复...............................................................................................................133 11.7.1 恢复类型............................................................................................................133 11.7.2 数据库恢复........................................................................................................133 11.8 其他关于备份和恢复的操作......................................................................................134 第 12章 – 维护任务...............................................................................................................135 12.1 重组(REORG)、运行统计(RUNSTATS)、重绑定(REBIND).......................135 12.1.1重组(REORG)命令........................................................................................135 12.1.2运行统计(RUNSTATS)命令 ..........................................................................136 12.1.3 绑定/重新绑定.................................................................................................136 12.1.4 在控制中心执行维护工作...................................................................................137 12.2 维护方式...................................................................................................................139 实验#11 – 配置自动维护.................................................................................................141 第 13章 – 并行与锁定...........................................................................................................143 13.1 事务(Transactions)..............................................................................................143 13.2 并行(Concurrency) ..............................................................................................143 13.3无并行控制导致的问题 .............................................................................................144 13.3.1丢失更新(Lost update)..................................................................................145 13.3.2未落实的读(Uncommitted read)....................................................................145 13.3.3不可重复读(Non-repeatable read).................................................................146 13.3.4幻象(Phantom read)......................................................................................146 13.4隔离级别(Isolation Levels)...................................................................................147 13.4.1未落实的读........................................................................................................147 13.4.2游标稳定性........................................................................................................147 13.4.3读稳定性............................................................................................................148 13.4.4可重复读............................................................................................................148 13.4.5隔离级别对比.....................................................................................................148 13.4.6设定隔离级别.....................................................................................................149 13.5锁定升级...................................................................................................................150 13.6锁定监视...................................................................................................................151 13.7锁定等待...................................................................................................................151 13.8死锁的引发与侦测.....................................................................................................152 13.9并行与锁定的最佳实践:..........................................................................................153 PART III – DB2 Express-C应用程序开发............................................................................155 第 14章 –SQL PL 存储过程..................................................................................................157 14.1 IBM数据工作室(Data Studio)..............................................................................158 14.1.2在Data Studio中创建一个存储过程..................................................................159 14.2 SQL PL 存储过程基础..............................................................................................161 14.2.1存储过程的结构.................................................................................................161 14.2.2 可选的存储过程属性..........................................................................................162 14.2.3参数...................................................................................................................162 14.2.4 SQL PL存储过程中的注释................................................................................163 14.2.5 复合语句............................................................................................................163 14.2.6 变量声明............................................................................................................163 14.2.7 赋值语句............................................................................................................164 14.3 游标..........................................................................................................................164 14.4 流控制......................................................................................................................164 14.5 调用存储过程 ...........................................................................................................165 14.6 错误和情况处理器....................................................................................................166 14.7 动态SQL..................................................................................................................168 第 15章 – 直接插入 SQL 过程语言、触发器、用户定义函数(UDF)..................................169 15.1直接插入SQL PL .....................................................................................................169 15.2 触发器(Trigger)....................................................................................................170 15.2.1 触发器的类型 ....................................................................................................170 实验 #12 从控制中心创建一个触发器...............................................................................174 15.3 用户定义函数 (UDF).................................................................................................177 15.3.1 标量函数(Scalar function).............................................................................177 15.3.2 表函数(Table function)..................................................................................178 实验 #13 使用IBM Data Studio创建用户定义函数(UDF)............................................179 第 16章 – DB2 pureXML......................................................................................................181 16.1 在数据库中使用XML................................................................................................181 16.2 XML数据库..............................................................................................................182 16.2.1 启用 XML的数据库............................................................................................182 16.2.2 原生 XML数据库...............................................................................................182 16.3 DB2中的XML..........................................................................................................183 16.3.1 pureXML 技术优势............................................................................................184 16.3.2 XPath基础........................................................................................................185 16.3.3 XQuery的定义..................................................................................................188 16.3.4 插入 XML文档...................................................................................................189 16.3.5 查询 XML数据...................................................................................................191 16.3.6 使用 SQL/XML执行联合操作............................................................................196 16.3.7 使用 XQuery执行联合操作................................................................................196 16.3.8 更新与删除操作.................................................................................................197 16.3.9 XML 索引.........................................................................................................198 实验 #14 - SQL/XML 和 XQuery.......................................................................................200 第 17章 – 使用 Java、PHP和 Ruby进行数据库应用开发...................................................201 17.1 Java应用程序开发...................................................................................................201 17.1.1 JDBC类型 2驱动程序.......................................................................................201 17.1.2 JDBC类型 4驱动程序.......................................................................................202 17.2 PHP应用程序开发...................................................................................................203 17.2.1 DB2为PHP提供的连接选项.............................................................................203 17.2.2 Zend Core for IBM.............................................................................................204 17.3 Ruby on Rails应用程序开发.....................................................................................206 17.3.1 Startup Toolkit for DB2 on Rails ........................................................................206 附录 A — 排除故障...............................................................................................................207 A.1 查找错误代码的更多信息...........................................................................................207 A.2 SQLCODESQLSTATE .........................................................................................208 A.3 DB2 管理通知日志.....................................................................................................208 A.4 db2diag.log................................................................................................................209 A.5 CLI追踪.....................................................................................................................209 A.6 DB2缺陷与补丁.........................................................................................................209 参考资源 ...............................................................................................................................210 网站..................................................................................................................................210 书籍..................................................................................................................................211

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