SQL常用语句总结
2015-11-26 17:23
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-------查询一个表有多少列
select count(*) from sysobjects a join syscolumns b
on a.id=b.id
where a.name='XXX'
-----查询一个数据库中有多少张表
SQLSERVER:SELECT * from sysobjects where xtype = 'u'
ORACLE: select * from user_tables
------查询一个库中所有含有某列名的表
select distinct t1.name from sysobjects t1,syscolumns t2
where t1.id=t2.id and t2.name like '%name%'
select count(*) from sysobjects a join syscolumns b
on a.id=b.id
where a.name='XXX'
-----查询一个数据库中有多少张表
SQLSERVER:SELECT * from sysobjects where xtype = 'u'
ORACLE: select * from user_tables
------查询一个库中所有含有某列名的表
select distinct t1.name from sysobjects t1,syscolumns t2
where t1.id=t2.id and t2.name like '%name%'
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