显示表结构sql语句

最新推荐文章于 2025-11-05 11:47:40 发布

转载最新推荐文章于 2025-11-05 11:47:40 发布 · 7k 阅读

文章标签：

#sql #join #sql server #properties

SQLSERVER 专栏收录该内容

32 篇文章

订阅专栏

本文提供针对SQLServer 2000、2005版本的SQL语句，用于查询数据库表的详细结构，包括字段名、数据类型、是否为主键等属性。

显示表结构sql语句SQL Server 2000--------------------------------------------------------------------------------1SELECT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 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.smallidleft join sysproperties f on d.id=f.id and f.smallid=0--where 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.colorderSQL Server 2000--------------------------------------------------------------------------------2 SELECT (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 bon a.xtype=b.xusertypeinner join sysobjects don a.id=d.id and d.xtype='U' and .name<>'dtproperties'left join syscomments eon a.cdefault=e.idleft join sysproperties gon a.id=g.id AND a.colid = g.smallidorder by a.id,a.colorderSQL Server 2005--------------------------------------------------------------------------------SELECT (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 bon a.xtype=b.xusertypeinner join sysobjects don a.id=d.id and d.xtype='U' and d.name<>'dtproperties'left join syscomments eon a.cdefault=e.idleft join sys.extended_properties g --2005相应的修改on a.id=g.major_id AND a.colid = g.major_id --2005相应的修改where d.name='D3'order by a.id,a.colorder