Hi
The below code is working fine with one problem that is shown many records where it suppose to show only one. (for example: if a user from UserInfo table has 10 ads into ads table where 5 of those ads has value similar to Query String result value, so he repeat the user 5 times where it suppose to appear once whatever he have ads where Wtag column.)
i make quick screen record explaining the issue hope that will be more clear to understand the issue, please have a look
https://www.youtube.com/watch?v=lh2GY2_whVM&feature=youtu.be