SQL SSRS中的“ IN”表达式

Question

I´ve got this expression here:

WHERE ProductName in ('%Comfort%','%Super%', '%Normal%','%PC%')

BUt it not work. The Table shows me "NaN" Values and Error.

Then I´ve tried it with this expression:

WHERE ProductName like '%Comfort%' AND ProductName like '%Super%' AND ProductName like '%Normal%' AND ProductName like '%PC%'

This was not working, too.

If I only use this expression

 WHERE ProductName like '%Comfort%' 

Then it appears me what I want but I miss the other Products in my table.

Answer 1

Well, your second query was almost ok, since column IN(x,y,z) is equals to

column = x or column = y or tcolumn = z

And not

column = x and column = y and tcolumn = z   

The only problem there is you need to replace the 'AND' with an 'OR' like this:

WHERE ProductName like '%Comfort%' or ProductName like '%Super%' or ProductName like '%Normal%' or ProductName like '%PC%'

Answer 2

You cannot use wildcards ( % ) in the IN clause. The second where is saying ProductName that has "Super" And "Normal" And "PC" in it, so a product name "Normal Super PC" would be returned but not those that do not have all three in the name.

You need to change the AND to OR