"Join" using sql query with parameters

[Anonymous]

Hello community ! 

I am doing a sql query on the tDbInput as shown in the picture, then I want to use both columns as parameters for the component 2 request (tDbROW).

The FileName works but for the comparison of the count it does not work

[Anonymous]

THE RESULT : 

6.PNG

[fdenis]

you have to use

where fileName='" + row1.FileName + "'

but it's not the best way.
I'll rather to add tMap to join results from booth queries.