SQL第一个列表中的第二个

Question

SQL Server 2005.

I have 2 lists:

1. ('a', 'b', 'c', 'd')

2. ('d', 'e', 'f', 'g')

I need to make a WHERE clause with these 2 inside a dynamic SQL string, something like:

 select *
 from tbl
 where ... afewconditionshere ...
      AND anyitemfrom[('a', 'b', 'c', 'd')] is inside [('d', 'e', 'f', 'g')]

it looks kinda weird, but I get this data from a 3rd party, cannot make too big changes

the lists would always have < 20 items inside

UPDATE

a,b,c,d,e,f,g are like security things not related to the table in any way, the idea is that if you have this anyitemfrom[('a', 'b', 'c', 'd')] is inside [('d', 'e', 'f', 'g')] then you are able to view the records returned, otherwise no records should be returned

yes this condition should basically return true or false

Answer 1

Based on your question, it seems if you perform one IN (), then a second IN() on the filtered data set, you should get what you're looking for:

select * from
(
select * from tbl
where ... afewconditionswhere ...
and anyitemfrom in('a', 'b', 'c', 'd')
) as derived
where derived.anyitemfrom in ('d', 'e', 'f', 'g')

Answer 2

declare @cmd varchar(2000), @list1 varchar(100), @list2 varchar(100)

select @list1 = "('a', 'b', 'c', 'd')", @list2 = "('d', 'e', 'f', 'g')"

select @cmd =
'select * from
(
select * from tbl
where ... afewconditionswhere ...
and anyitemfrom in ' + @list1 + '
) as derived
where derived.anyitemfrom in ' + @list2


exec(@cmd)

Answer 3

i figured it out

i used something like :

 CREATE TABLE #t (UserName VARCHAR(50))

 DECLARE @sql VARCHAR(MAX)
 SELECT @sql = 'INSERT INTO #t SELECT ''' + REPLACE(@UserList, ',', ''' UNION SELECT ''') + ''''
 PRINT (@sql)
 EXEC (@sql)

 SELECT * FROM #t

 IF OBJECT_ID('tempdb..#t') IS NOT NULL BEGIN DROP TABLE #t END

for both lists then I was able to join them, and use the join's recordcount

Answer 4

 WHERE (
        SELECT COUNT(*)
          FROM ( select 'a' union all select 'b' union all select 'c' union all select 'd'
                 intersect
                 select 'd' union all select 'e' union all select 'f' union all select 'g'
               )
       ) > 0