Sybase数据文件unreserved类型的问题

Qinriwei 2006-06-27 09:20:27

Sybase数据库文件数据库信息类型有：Data、Indexs、Unused、Unreserved四种类型，其中Unreserved类型是什么意义呢？和Unused有何区别？
请大侠指教。

...全文

210 1 打赏收藏转发到动态举报

写回复

1 条回复

切换为时间正序

请发表友善的回复…

发表回复

hobbylu 2006-06-27

打赏
举报

回复

这几个东西都是指空间
data表示数据所占用的空间
index表示索引所占用的空间
unused表示在该表所占用的空间中没有使用的部分
reserverd表示的是已经给该表分配的空间，指所有的

HC110110010 文件系统基础

网络设备配置文件备份.ppt

文件系统基础，分享一下方便学习

高级网络人才培训专家_HC110110010 文件系统基础

在C2基础上的VHDL时钟秒表文件 DEFAULT_DEVICES BEGIN AUTO_DEVICE = EPM7096QC100-7; AUTO_DEVICE = EPM7096LC84-7; AUTO_DEVICE = EPM7096LC68-7; AUTO_DEVICE = EPM7064QC100-7; AUTO_DEVICE = EPM7064LC84-7; AUTO_DEVICE = EPM7064LC68-7; AUTO_DEVICE = EPM7064TC44-7; AUTO_DEVICE = EPM7064LC44-7; AUTO_DEVICE = EPM7032TC44-6; AUTO_DEVICE = EPM7032QC44-7; AUTO_DEVICE = EPM7032LC44-6; ASK_BEFORE_ADDING_EXTRA_DEVICES = ON; END; TIMING_POINT BEGIN MAINTAIN_STABLE_SYNTHESIS = OFF; CUT_ALL_CLEAR_PRESET = ON; CUT_ALL_BIDIR = ON; END; IGNORED_ASSIGNMENTS BEGIN FIT_IGNORE_TIMING = ON; DEMOTE_SPECIFIC_LCELL_ASSIGNMENTS_TO_LAB_ASSIGNMENTS = OFF; IGNORE_LOCAL_ROUTING_ASSIGNMENTS = OFF; IGNORE_DEVICE_ASSIGNMENTS = OFF; IGNORE_LC_ASSIGNMENTS = OFF; IGNORE_PIN_ASSIGNMENTS = OFF; IGNORE_CHIP_ASSIGNMENTS = OFF; IGNORE_TIMING_ASSIGNMENTS = OFF; IGNORE_LOGIC_OPTION_ASSIGNMENTS = OFF; IGNORE_CLIQUE_ASSIGNMENTS = OFF; END; GLOBAL_PROJECT_DEVICE_OPTIONS BEGIN MAX7000B_ENABLE_VREFB = OFF; MAX7000B_ENABLE_VREFA = OFF; MAX7000B_VCCIO_IOBANK2 = 3.3V; MAX7000B_VCCIO_IOBANK1 = 3.3V; CONFIG_EPROM_PULLUP_RESISTOR = ON; CONFIG_EPROM_USER_CODE = FFFFFFFF; FLEX_CONFIGURATION_EPROM = AUTO; MAX7000AE_ENABLE_JTAG = ON; MAX7000AE_USER_CODE = FFFFFFFF; FLEX6000_USE_LOW_VOLTAGE_CONFIGURATION_EPROM = OFF; FLEX10KA_USE_LOW_VOLTAGE_CONFIGURATION_EPROM = ON; FLEX10K_USE_LOW_VOLTAGE_CONFIGURATION_EPROM = OFF; FLEX6000_ENABLE_JTAG = OFF; CONFIG_SCHEME_FLEX_6000 = PASSIVE_SERIAL; MULTIVOLT_IO = OFF; MAX7000S_ENABLE_JTAG = ON; FLEX10K_ENABLE_LOCK_OUTPUT = OFF; MAX7000S_USER_CODE = FFFF; CONFIG_SCHEME_10K = PASSIVE_SERIAL; FLEX10K_JTAG_USER_CODE = 7F; ENABLE_INIT_DONE_OUTPUT = OFF; ENABLE_CHIP_WIDE_OE = OFF; ENABLE_CHIP_WIDE_RESET = OFF; nCEO = UNRESERVED; CLKUSR = UNRESERVED; ADD17 = UNRESERVED; ADD16 = UNRESERVED; ADD15 = UNRESERVED; ADD14 = UNRESERVED; ADD13 = UNRESERVED; ADD0_TO_ADD12 = UNRESERVED; SDOUT = RESERVED_DRIVES_OUT; RDCLK = UNRESERVED; RDYnBUSY = UNRESERVED; nWS_nRS_nCS_CS = UNRESERVED; DATA1_TO_DATA7 = UNRESERVED; DATA0 = RESERVED_TRI_STATED; FLEX8000_ENABLE_JTAG = OFF; CONFIG_SCHEME = ACTIVE_SERIAL; DISABLE_TIME_OUT = OFF; ENABLE_DCLK_OUTPUT = OFF; RELEASE_CLEARS = OFF; AUTO_RESTART = OFF; USER_CLOCK = OFF; SECURITY_BIT = OFF; RESERVED_PINS_PERCENT = 0; RESERVED_LCELLS_PERCENT = 0; END;

2,598

社区成员

25,609

社区内容

发帖

与我相关

我的任务

社区管理员

加入社区

近7日
近30日
至今

加载中

查看更多榜单

社区公告

暂无公告

试试用AI创作助手写篇文章吧

+ 用AI写文章