求取得与修改SQL SERVER 2005的字段描述的语句。
SQL2000下的字段描述的取得与修改，我己经会了，但在2005下报错，请各位大侠们帮一下。
1是取得SQL2005下某表所有的字段的描述
2是修改SQL2005下表中字段的描述值。
不好意思，就只有30分了！谢谢！
[解决办法]
--功能概述：显示某一表的结构DECLARE @tableName nvarchar(100)SET @tableName ='brand'--mssql2005SELECT ( CASE WHEN a.colorder=1 THEN d.name ELSE '' END)表名, a.colorder 字段序号, a.name 字段名, (CASE WHEN COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 THEN '√' ELSE '' END) 标识, (CASE WHEN ( SELECT COUNT(*) FROM sysobjects WHERE (name IN (SELECT name FROM sysindexes WHERE (id = a.id) AND (indid IN (SELECT indid FROM sysindexkeys WHERE (id = a.id) AND (colid IN (SELECT colid FROM syscolumns WHERE (id = a.id) AND (name = a.name))))))) AND (xtype = 'PK'))>0 THEN '√' ELSE '' END) 主键, b.name 类型, a.length 占用字节数, COLUMNPROPERTY(a.id,a.name,'PRECISION') AS 长度, ISNULL(COLUMNPROPERTY(a.id,a.name,'Scale'),0) AS 小数位数, (CASE WHEN a.isnullable=1 THEN '√' ELSE '' END) 允许空, ISNULL(e.text,'') 默认值, ISNULL(g.[value],'') AS 字段说明 FROM syscolumns a LEFT JOIN systypes b ON a.xtype=b.xusertype INNER JOIN sysobjects d ON a.id=d.id AND d.xtype='U' AND d.name <>'dtproperties' LEFT JOIN syscomments e ON a.cdefault=e.id LEFT JOIN sys.extended_properties g ON a.id=g.major_id AND a.colid = g.major_id WHERE d.name=@tableName ORDER BY a.id,a.colorder
[解决办法]
--sql server 2005-- 1. 表结构信息查询 -- ========================================================================-- 表结构信息查询-- 邹建 2005.08(引用请保留此信息)-- ========================================================================SELECT TableName=CASE WHEN C.column_id=1 THEN O.name ELSE N'' END, TableDesc=ISNULL(CASE WHEN C.column_id=1 THEN PTB.[value] END,N''), Column_id=C.column_id, ColumnName=C.name, PrimaryKey=ISNULL(IDX.PrimaryKey,N''), [IDENTITY]=CASE WHEN C.is_identity=1 THEN N'√'ELSE N'' END, Computed=CASE WHEN C.is_computed=1 THEN N'√'ELSE N'' END, Type=T.name, Length=C.max_length, Precision=C.precision, Scale=C.scale, NullAble=CASE WHEN C.is_nullable=1 THEN N'√'ELSE N'' END, [Default]=ISNULL(D.definition,N''), ColumnDesc=ISNULL(PFD.[value],N''), IndexName=ISNULL(IDX.IndexName,N''), IndexSort=ISNULL(IDX.Sort,N''), Create_Date=O.Create_Date, Modify_Date=O.Modify_dateFROM sys.columns C INNER JOIN sys.objects O ON C.[object_id]=O.[object_id] AND O.type='U' AND O.is_ms_shipped=0 INNER JOIN sys.types T ON C.user_type_id=T.user_type_id LEFT JOIN sys.default_constraints D ON C.[object_id]=D.parent_object_id AND C.column_id=D.parent_column_id AND C.default_object_id=D.[object_id] LEFT JOIN sys.extended_properties PFD ON PFD.class=1 AND C.[object_id]=PFD.major_id AND C.column_id=PFD.minor_id-- AND PFD.name='Caption' -- 字段说明对应的描述名称(一个字段可以添加多个不同name的描述) LEFT JOIN sys.extended_properties PTB ON PTB.class=1 AND PTB.minor_id=0 AND C.[object_id]=PTB.major_id-- AND PFD.name='Caption' -- 表说明对应的描述名称(一个表可以添加多个不同name的描述) LEFT JOIN -- 索引及主键信息 ( SELECT IDXC.[object_id], IDXC.column_id, Sort=CASE INDEXKEY_PROPERTY(IDXC.[object_id],IDXC.index_id,IDXC.index_column_id,'IsDescending') WHEN 1 THEN 'DESC' WHEN 0 THEN 'ASC' ELSE '' END, PrimaryKey=CASE WHEN IDX.is_primary_key=1 THEN N'√'ELSE N'' END, IndexName=IDX.Name FROM sys.indexes IDX INNER JOIN sys.index_columns IDXC ON IDX.[object_id]=IDXC.[object_id] AND IDX.index_id=IDXC.index_id LEFT JOIN sys.key_constraints KC ON IDX.[object_id]=KC.[parent_object_id] AND IDX.index_id=KC.unique_index_id INNER JOIN -- 对于一个列包含多个索引的情况,只显示第1个索引信息 ( SELECT [object_id], Column_id, index_id=MIN(index_id) FROM sys.index_columns GROUP BY [object_id], Column_id ) IDXCUQ ON IDXC.[object_id]=IDXCUQ.[object_id] AND IDXC.Column_id=IDXCUQ.Column_id AND IDXC.index_id=IDXCUQ.index_id ) IDX ON C.[object_id]=IDX.[object_id] AND C.column_id=IDX.column_id -- WHERE O.name=N'要查询的表' -- 如果只查询指定表,加上此条件ORDER BY O.name,C.column_id -- 2. 索引及主键信息 -- ========================================================================-- 索引及主键信息-- 邹建 2005.08(引用请保留此信息)-- ========================================================================SELECT TableId=O.[object_id], TableName=O.Name, IndexId=ISNULL(KC.[object_id],IDX.index_id), IndexName=IDX.Name, IndexType=ISNULL(KC.type_desc,'Index'), Index_Column_id=IDXC.index_column_id, ColumnID=C.Column_id, ColumnName=C.Name, Sort=CASE INDEXKEY_PROPERTY(IDXC.[object_id],IDXC.index_id,IDXC.index_column_id,'IsDescending') WHEN 1 THEN 'DESC' WHEN 0 THEN 'ASC' ELSE '' END, PrimaryKey=CASE WHEN IDX.is_primary_key=1 THEN N'√'ELSE N'' END, [UQIQUE]=CASE WHEN IDX.is_unique=1 THEN N'√'ELSE N'' END, Ignore_dup_key=CASE WHEN IDX.ignore_dup_key=1 THEN N'√'ELSE N'' END, Disabled=CASE WHEN IDX.is_disabled=1 THEN N'√'ELSE N'' END, Fill_factor=IDX.fill_factor, Padded=CASE WHEN IDX.is_padded=1 THEN N'√'ELSE N'' ENDFROM sys.indexes IDX INNER JOIN sys.index_columns IDXC ON IDX.[object_id]=IDXC.[object_id] AND IDX.index_id=IDXC.index_id LEFT JOIN sys.key_constraints KC ON IDX.[object_id]=KC.[parent_object_id] AND IDX.index_id=KC.unique_index_id INNER JOIN sys.objects O ON O.[object_id]=IDX.[object_id] INNER JOIN sys.columns C ON O.[object_id]=C.[object_id] AND O.type='U' AND O.is_ms_shipped=0 AND IDXC.Column_id=C.Column_id-- INNER JOIN -- 对于一个列包含多个索引的情况,只显示第1个索引信息-- (-- SELECT [object_id], Column_id, index_id=MIN(index_id)-- FROM sys.index_columns-- GROUP BY [object_id], Column_id-- ) IDXCUQ-- ON IDXC.[object_id]=IDXCUQ.[object_id]-- AND IDXC.Column_id=IDXCUQ.Column_id
[解决办法]
1.字段注释在系统表sys.extended_properties中取得2.EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'字段注释内容' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'表名', @level2type=N'COLUMN',@level2name=N'字段名'GO
[解决办法]
--參考下,2005下沒測試--表及字段描述信息处理示例--创建表create table 表(a1 varchar(10),a2 char(2))--为表添加描述信息EXECUTE sp_addextendedproperty N'MS_Description', '人员信息表', N'user', N'dbo', N'table', N'表', NULL, NULL--为字段a1添加描述信息EXECUTE sp_addextendedproperty N'MS_Description', '姓名', N'user', N'dbo', N'table', N'表', N'column', N'a1'--为字段a2添加描述信息EXECUTE sp_addextendedproperty N'MS_Description', '性别', N'user', N'dbo', N'table', N'表', N'column', N'a2'--更新表中列a1的描述属性：EXEC sp_updateextendedproperty 'MS_Description','字段1','user',dbo,'table','表','column',a1--显示表的描述属性SELECT *FROM ::fn_listextendedproperty (NULL, 'user', 'dbo', 'table', '表', 'column', NULL)--删除表中列a1的描述属性：EXEC sp_dropextendedproperty 'MS_Description','user',dbo,'table','表','column',a1--删除测试drop table 表
