获得SQL数据库信息的代码

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我是靠谱客的博主重要康乃馨，最近开发中收集的这篇文章主要介绍获得SQL数据库信息的代码，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

复制代码代码如下:

 
SELECT Name FROM Master..SysDatabases ORDER BY Name --获得所有数据库 
SELECT Name FROM [数据库名]..SysObjects Where XType='U' ORDER BY Name --获得数据库下的所有表 
select name from syscolumns where id=object_id(N'表名') --获得表里的所有字段 

--获取表字段名、类型、递增、描述

复制代码代码如下:

 
select syscolumns.name as 字段,syscolumns.isnullable as 可否为空,systypes.name as SQL类型, 
ISNULL(sys.identity_columns.is_identity,0) as 递增, 
ISNULL(sys.extended_properties.value,'') as 描述 from sysobjects 
join syscolumns on sysobjects.id = syscolumns.id 
join systypes on syscolumns.xusertype = systypes.xusertype 
left join sys.identity_columns on sys.identity_columns.object_id = syscolumns.id 
and sys.identity_columns.column_id = syscolumns.colid 
left join sys.extended_properties on sys.extended_properties.major_id = syscolumns.id 
and sys.extended_properties.minor_id = syscolumns.colid 
where sysobjects.name = '表名' 