SQLServer中求两个字符串的交集

使用javascript的数组来计算，代码如下：


复制代码 代码如下:

use tempdb

go

if (object_id (‘fn_getarray’ ) is not null )

drop function dbo . fn_getarray

go

create function fn_getarray (@ instr1 varchar (8000 ), @ instr2 varchar (8000 ))

returns varchar (8000 )

as

begin

declare @ str varchar (8000 )

set @ str = ‘

var a = [”’ + replace (@ instr1 , ‘,’ , ”’,”’ )+ ”’];

var b = [”’ + replace (@ instr2 , ‘,’ , ”’,”’ )+ ”’];

var c=””

for (var i=0;i<a.length;i++)

{

for (var j=0;j<b.length;j++)

{ if(a[i]==b[j]&&c.indexof(a[i])<0)

c+=a[i]+”,”

}

}

‘

declare @ object int

declare @ r varchar (800 )

exec sp_oacreate ‘msscriptcontrol.scriptcontrol’ , @ object output

exec sp_oasetproperty @ object , ‘language’ , ‘javascript’

exec sp_oamethod @ object , ‘eval’ , @ r out , @ str

return @ r

end

go

select dbo . fn_getarray (‘abc,dced,f23e,gew432′ , ’23c,abc,f23e,geafd,ged’ )

/* 输出

abc,f23e,

*/