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一个表中所有字段的名称

  • 2020-04-08 18:18
  • 数据库知识
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文章介绍了关于SQLSERVER如何获取一个数据库中的所有表的名称、一个表中所有字段的名称 ,有需要了解的同学可参考一下。

1.查询数据库中的所有数据库名:

代码如下复制代码 SELECT Name FROM Master..SysDatabases ORDER BY Name2.

查询某个数据库中所有的表名:

代码如下复制代码 SELECT Name FROM SysObjects Where XType='U' ORDER BY Name3.

查询表结构信息

代码如下复制代码

SELECT (case when a.colorder=1 then d.name else null 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 [说明]FROM syscolumns a left join systypes b on a.xtype=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_idleft join sys.extended_properties f on d.id=f.class and f.minor_id=0where b.name is not null--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.colorder