如何获得Sysbase的表结构？

[conis]

我想获取数据库的表结构信息，分别要取得表名，注释，是否为空，是否为主健等信息，示例(SQL Server)

/*
Author:Conis
CreateDate:16:21 2007-08-09
Description:
获取指定表的所有字段属性
Remark:
　1.如果你不精通SQL代码，请不要随便修改，以免程序不能正常运行。
` 2.字段名称不能修改，否则会导致程序错误
3.如果你一定要修改，建议在修改之前做好备份
=======================================================================
| CopyRight(C)Conis YI |
| URL:http://www.conis.cn |
| E-Mail:[e-mail] |
=======================================================================
*/

DECLARE @Version VARCHAR(100)
DECLARE @SysTable VARCHAR(50)
DECLARE @sql NVARCHAR(2000)
DECLARE @SmallID VARCHAR(10)
DECLARE @MajorID VARCHAR(10)

SET @Version = @@VERSION
IF CHARINDEX('9.00', @Version) = 0 --2005
BEGIN
SET @SysTable = 'sysproperties'
SET @SmallID = 'smallid'
SET @MajorID = 'id'
END
ELSE --2000
BEGIN
SET @SysTable = 'sys.extended_properties'
SET @SmallID = 'minor_id'
SET @MajorID = 'major_id'
END

SET @sql =
'SELECT
col.name AS ''FieldName'',
(CASE WHEN (SELECT COUNT(*)
FROM sysobjects
WHERE (name in
(SELECT name
FROM sysindexes
WHERE (id = col.id) AND (indid in
(SELECT indid
FROM sysindexkeys
WHERE (id = col.id) AND (colid in
(SELECT colid
FROM syscolumns
WHERE (id = col.id) AND (name = col.name))))))) AND
(xtype = ''PK''))>0 THEN 1 ELSE 0 END) AS ''IsKey'',
typ.name AS ''Type'',
col.length AS ''Length'',
ext.[value] AS ''Description'',
col.isnullable AS ''AllowNull'',
com.text AS ''DefaultValue'',
col.colstat AS ''IsOutPut'',
obj.Name AS ''TableName''

FROM syscolumns col
LEFT JOIN systypes typ on col.xtype = typ.xusertype
INNER JOIN sysobjects obj on col.id = obj.id
LEFT JOIN syscomments com on col.cdefault = com.id
LEFT JOIN [PROPERTIES] ext on col.id = ext.[MAJORID] AND col.colid = ext.[SMALLID]
WHERE
obj.name in ({0}) AND (obj.xtype = ''U'' OR obj.xtype = ''V'')
ORDER BY obj.name'

SET @sql = REPLACE(@sql, '[PROPERTIES]', @SysTable)
SET @sql = REPLACE(@sql, '[SMALLID]', @SmallID)
SET @sql = REPLACE(@sql, '[MAJORID]', @MajorID)
EXEC sp_executesql @sql

/*
Author:Conis
CreateDate:16:50 2007-08-09
Description:
获取所有表的属性
Remark:
　1.如果你不精通SQL代码，请不要随便修改，以免程序不能正常运行。
` 2.字段名称不能修改，否则会导致程序错误
3.如果你一定要修改，建议在修改之前做好备份
=======================================================================
| CopyRight(C)Conis YI |
| URL:http://www.conis.cn |
| E-Mail:[e-mail] |
=======================================================================
*/
DECLARE @Version VARCHAR(100)
DECLARE @SysTable VARCHAR(50)
DECLARE @sql NVARCHAR(1000)
DECLARE @SmallID VARCHAR(10)

SET @Version = @@VERSION
IF CHARINDEX('9.00', @Version) = 0 --2005
BEGIN
SET @SysTable = 'sysproperties'
SET @SmallID = 'smallid'
END
ELSE --2000
BEGIN
SET @SysTable = 'sys.extended_properties'
SET @SmallID = 'minor_id'
END

SET @sql = '
SELECT obj.name AS ''Name'',
CASE --如果是表，则查询表的备注信息。
WHEN obj.xtype = ''U'' THEN
(SELECT TOP 1 ext.value FROM [PROPERTIES] ext WHERE
ext.[SMALLID] = obj.id and ext.[SMALLID] = 0
)
ELSE ''''
END AS ''Description'',
CASE obj.xtype
WHEN ''U'' THEN ''Table''
WHEN ''P'' THEN ''Procedure''
WHEN ''V'' THEN ''View''
END AS ''Type''
FROM sysobjects obj
WHERE (obj.xtype = ''U'' OR obj.xtype = ''V'')
ORDER BY obj.xtype'
SET @sql = REPLACE(@sql, '[PROPERTIES]', @SysTable)
SET @sql = REPLACE(@sql, '[SMALLID]', @SmallID)
EXEC sp_executesql @sql

[liuyann]

sp_help tablename

[liuyann]

首先通过sysobjects表查询到表名对应的id
select id from sysobjects where name='tablename'

然后查询syscolumns表的name字段

select name from syscolumns where id=@id

[此昵称已经1存在]

select a.name,b.name bname,a.length,c.text,g.text gtext from syscolumns a
left join systypes b on a.usertype=b.usertype
left join syscomments c on a.cdefault=c.id
left join syscomments g on a.id=g.id AND a.colid=g.colid
where a.id =( select id from sysobjects where name='表名')

[zhangenming20080324]

sp_helptext TA

[snake_gz]

长知识了

[littlebiy]

sp_help 后面直接跟表名即可获得表的结构信息
后面没有表名，就是获得所有的数据库表
或者用select * from sysobjects得到表名