SQLServer中查询表结构(表主键 、列说明、列数据类型、所有表名)的Sql语句
SQLServer中查询表结构(表主键 、列说明、列数据类型、所有表名)的Sql语句
1、查询数据库中的所有表名称:
SELECT name FROM SysObjects Where XType='U' ORDER BY Name
结果:
2、查询数据库中指定表的表结构:
--快速查看表结构 SELECT CASE WHEN col.colorder = 1 THEN obj.name ELSE '' END AS 表名, col.colorder AS 序号 , col.name AS 列名 , ISNULL(ep.[value], '') AS 列说明 , t.name AS 数据类型 , col.length AS 长度 , ISNULL(COLUMNPROPERTY(col.id, col.name, 'Scale'), 0) AS 小数位数 , CASE WHEN COLUMNPROPERTY(col.id, col.name, 'IsIdentity') = 1 THEN '1' ELSE '' END AS 标识 , CASE WHEN EXISTS ( SELECT 1 FROM dbo.sysindexes si INNER JOIN dbo.sysindexkeys sik ON si.id = sik.id AND si.indid = sik.indid INNER JOIN dbo.syscolumns sc ON sc.id = sik.id AND sc.colid = sik.colid INNER JOIN dbo.sysobjects so ON so.name = si.name AND so.xtype = 'PK' WHERE sc.id = col.id AND sc.colid = col.colid ) THEN '1' ELSE '' END AS 主键 , CASE WHEN col.isnullable = 1 THEN '1' ELSE '' END AS 允许空 , ISNULL(comm.text, '') AS 默认值 FROM dbo.syscolumns col LEFT JOIN dbo.systypes t ON col.xtype = t.xusertype inner JOIN dbo.sysobjects obj ON col.id = obj.id AND obj.xtype = 'U' AND obj.status >= 0 LEFT JOIN dbo.syscomments comm ON col.cdefault = comm.id LEFT JOIN sys.extended_properties ep ON col.id = ep.major_id AND col.colid = ep.minor_id AND ep.name = 'MS_Description' LEFT JOIN sys.extended_properties epTwo ON obj.id = epTwo.major_id AND epTwo.minor_id = 0 AND epTwo.name = 'MS_Description' WHERE obj.name = 'PkAutoInc'--表名 ORDER BY col.colorder ;
结果:
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