在MS SQL Server 2000中查找一个数据库中的所有用户表和用户视图的系统ID、名称和其注释信息的SQL语句:
SELECT (casewhen a.colorder=1then d.name else''end) 表名, a.colorder 字段序号, a.name 字段名, (casewhenCOLUMNPROPERTY( a.id,a.name,'IsIdentity')=1then'√'else''end) 标识, (casewhen (SELECTcount(*) 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') )>0then'√'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, (casewhen a.isnullable=1then'√'else''end) 允许空, isnull(e.text,'') 默认值, isnull(g.[value],'') AS 字段说明 FROM syscolumns a leftjoin systypes b on a.xtype=b.xusertype innerjoin sysobjects d on a.id=d.id and d.xtype='U'and d.name<>'dtproperties' leftjoin syscomments e on a.cdefault=e.id leftjoin sysproperties g on a.id=g.id AND a.colid = g.smallid orderby a.id,a.colorder