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如何得出一个表中列的数量呢

发布时间: 2012-01-29 21:39:32 作者: rapoo

怎么得出一个表中列的数量呢?
如题。

[解决办法]
select count(1) from 表
[解决办法]
select count(*) as 字段数量 from syscolumns where id=object_id( '表名 ')
[解决办法]
select count(*) as 字段个数
from syscolumns
where id=object_id( '表名 ')
[解决办法]
select count(列名) as 别名 from 表名
[解决办法]

探讨
也对,可是,如果是想获得一个表有多少个字段怎么获得呢?

[解决办法]
select count(*) from syscolumns
where id = object_id( '表名 ')
[解决办法]
select count(b.name) from sysobjects a,syscolumns b where a.id=b.id and a.name=tbname group by b.name
[解决办法]
SQL code
select count(*) as column_count from syscolumns where id=object_id('table_name')
[解决办法]
select count(*) as 字段数量 from syscolumns where id=object_id( '表名 ')

[解决办法]
select count(*) as 字段个数
from syscolumns
where id=object_id( '表名')

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