SQL Server 查询表注释和字段

------sqlserver 查询某个表的列名称、说明、备注、类型等 SELECT      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 a left join      systypes b  on      a.xusertype=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.minor_id   left join sys.extended_properties f on      d.id=f.major_id and f.minor_id=0 where      d.name='表名'    --如果只查询指定表,加上此where条件，tablename是要查询的表名；去除where条件查询所有的表信息 order by      a.id,a.colorder -----------------------------简易版----------------------- ------查询一个表的所有列名，字段的注释 SELECT A.name AS table_name, B.name AS column_name, C.value AS column_description FROM sys.tables A INNER JOIN sys.columns B ON B.object_id = A.object_id LEFT JOIN sys.extended_properties C ON C.major_id = B.object_id AND C.minor_id = B.column_id WHERE A.name = '表名'