获得SQL数据库信息的代码

获取表字段名、类型、递增、描述

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 
 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'