查询sql2005&2008全部表信息

 如果是查询sql server 2000,把sys.extended_properties修改为SysProperties

 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,
 列序号   = A.COLORDER,
 列名     = A.NAME,
 标识       = CASE WHEN COLUMNPROPERTY( A.ID,A.NAME,'ISIDENTITY')=1 THEN '√'ELSE '' END,
 主鍵       = 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,
 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
 ORDER BY
 A.ID,A.COLORDER