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SQL 判断字段类型语句
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本文导语: -->Title:Generating test data -->Author:wufeng4552 -->Date :2009-09-25 09:56:07 if object_id('tb')is not null drop table tb go create table tb(ID int,name text) insert tb select 1,'test' go --方法1 代码如下: select sql_variant_property(ID,'BaseType') from tb --方法2 代码如下: selec...
-->Title:Generating test data
-->Author:wufeng4552
-->Date :2009-09-25 09:56:07
if object_id('tb')is not null drop table tb
go
create table tb(ID int,name text)
insert tb select 1,'test'
go
--方法1
select sql_variant_property(ID,'BaseType') from tb
--方法2
select object_name(ID)表名,
c.name 字段名,
t.name 数据类型,
c.prec 长度
from syscolumns c
inner join systypes t
on c.xusertype=t.xusertype
where objectproperty(id,'IsUserTable')=1 and id=object_id('tb')
-->Author:wufeng4552
-->Date :2009-09-25 09:56:07
if object_id('tb')is not null drop table tb
go
create table tb(ID int,name text)
insert tb select 1,'test'
go
--方法1
代码如下:
select sql_variant_property(ID,'BaseType') from tb
--方法2
代码如下:
select object_name(ID)表名,
c.name 字段名,
t.name 数据类型,
c.prec 长度
from syscolumns c
inner join systypes t
on c.xusertype=t.xusertype
where objectproperty(id,'IsUserTable')=1 and id=object_id('tb')