select * from syscolumns where id = object_id('XT_JCDW')
用上面的方法，看不见表中字段的说明，就是表中字段的描述（注解）
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- SQL code
--查询用户表对象信息select Tab.Name as [表名],Tab.create_date as [创建时间],Tab.modify_date as [最后修改时间], Col.Name as [列名] ,Type.name as [数据类型],Col.max_length as [字段长度], CASE WHEN pk.is_primary_key= 1 THEN 'Y' ELSE 'N' end as [是否主键], CASE WHEN Col.is_identity = 1 THEN 'Y' else 'N'end as [是否自增] , identity_columns.seed_value as [自增种子],identity_columns.increment_value as [自增步长], case when Col.is_nullable = 1 then 'Y' else 'N' END AS [是否允许为NULL], Def.text as [默认值],case when Col.is_computed = 1 then 'Y' else 'N' END as [是否计算列] , computed_columns.definition as [计算公式],Col_Desc.Value as [列备注]from sys.objects Tab inner join sys.columns Col on Tab.object_id =Col.object_idinner join sys.types Type on Col.system_type_id = Type.system_type_idleft join sys.identity_columns identity_columns on Tab.object_id = identity_columns.object_id and Col.column_id = identity_columns.column_idleft join syscomments Def on Col.default_object_id = Def.IDleft join( select index_columns.object_id,index_columns.column_id,indexes.is_primary_key from sys.indexes indexes inner join sys.index_columns index_columns on indexes.object_id = index_columns.object_id and indexes.index_id = index_columns.index_id where indexes.is_primary_key = 1/*主键*/) PK on Tab.object_id = PK.object_id AND Col.column_id = PK.column_idleft join sys.computed_columns computed_columns on Tab.object_id =computed_columns.object_id and Col.column_id = computed_columns.column_idleft join sys.extended_properties Col_Desc on Col_Desc.major_id=Tab.object_id and Col_Desc.minor_id=Col.Column_id and Col_Desc.class=1 where Tab.type = 'U' and Tab.Name not like'sys%'order by Tab.create_date
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- SQL code
SELECT t.[name] AS [表名],c.[name] AS [字段名],cast(ep.[value] as varchar(100)) AS [字段说明] FROM sys.tables AS t INNER JOIN sys.columns AS c ON t.object_id = c.object_id LEFT JOIN sys.extended_properties AS ep ON ep.major_id = c.object_id AND ep.minor_id = c.column_id
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- SQL code
--sql server 2000SELECT 表名 = case when a.colorder=1 then d.name else '' end, 表说明 = case when a.colorder=1 then isnull(f.value,'') else '' end, 字段序号 = a.colorder, 字段名 = a.name, 标识 = case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end, 主键 = case when exists(SELECT 1 FROM sysobjects where xtype='PK' and parent_obj=a.id and name in ( SELECT name FROM sysindexes WHERE indid in( SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid))) then '√' else '' end, 类型 = b.name, 占用字节数 = a.length, 长度 = COLUMNPROPERTY(a.id,a.name,'PRECISION'), 小数位数 = isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0), 允许空 = case when a.isnullable=1 then '√'else '' end, 默认值 = isnull(e.text,''), 字段说明 = isnull(g.[value],'')FROM syscolumns aleft join systypes b on a.xusertype=b.xusertypeinner join sysobjects d on a.id=d.id and d.xtype='U' and d.name<>'dtproperties'left join syscomments e on a.cdefault=e.idleft join sysproperties g on a.id=g.id and a.colid=g.smallid left join sysproperties f on d.id=f.id and f.smallid=0where d.name='要查询的表' --如果只查询指定表,加上此条件order by a.id,a.colorder--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