mysql数据库中怎么搜索字段名_SQL中怎么根据字段名查找该字段名存在于数据库的哪些表中?...

上处的字段名是指的表中的列名还是指的列中某一个值。

如果是指的列名的话，很简单

select sysobjects.name as tablename,syscolumns.name as columnname

from syscolumns join sysobjects on sysobjects.id = syscolumns.id

where syscolumns.name like '%此处为列名%'

如果是指的一个值的话，要遍历数据库了。如下：

declare@str varchar(100)

set@str='张三'--要搜索的字符串

declare@s varchar(8000)

declaretb cursorlocalfor

selects='if exists(select 1 from ['+b.name+'] where convert(varchar,['+a.name+']) like ''%'+@str+'%'')

print ''select ['+a.name+'] from ['+b.name+']'''

fromsyscolumns a joinsysobjects b ona.id=b.id

whereb.xtype='U'anda.status>=0

--所查列的字段类型

anda.xusertype in(175,239,231,167,56,60,108,106)

opentb

fetchnextfromtb into@s

while @@fetch_status=0

begin

exec(@s)

fetchnextfromtb into@s

end

closetb

deallocatetb

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