SQL SERVER获取信息的方法

SELECT
obj.name tablename,
schem.name schemname,
CAST
(
    CASE 
        WHEN (SELECT COUNT(1) FROM sys.indexes WHERE object_id= obj.OBJECT_ID AND is_primary_key=1) >=1 THEN 1
        ELSE 0
    END 
AS BIT) HasPrimaryKey                                         
from sys.objects obj 
inner join dbo.sysindexes idx on obj.object_id=idx.id and idx.indid<=1
INNER JOIN sys.schemas schem ON obj.schema_id=schem.schema_id
where type=‘U‘ and obj.name =‘表名‘
order by obj.name

1、方法一

SELECT * FROM INFORMATION_SCHEMA.columns WHERE TABLE_NAME=‘表名‘ 

2、方法二

select a.name tablename, b.name colName, c.name colType ,c.length colLength

from sysobjects a inner join syscolumns b
on a.id=b.id and a.xtype=‘U‘
inner join systypes c
on b.xtype=c.xusertype

where a.name=‘表名‘