Subquery using JDBC?

Question

I have a query in my java program like this -

SELECT * FROM conversation WHERE user_id != 1 AND conversation_id IN 
( SELECT conversation_id FROM conversation WHERE user_id = 1)

This returns 0 rows in the result using jdbc. However if I copy and paste it into phpmyadmin it works fine. So what's going wrong?

I have added ?allowMultiQueries=true to my jdbc connection string to see if that would make a difference but it hasnt.

Edit:

Here is what my table looks like. I am looking to select the ids of users in conversations with user 1. Ive just noticed I left out the ! in the != in the query above, Ive put it in now. So anyone know why this works with phpmyadmin and not jdbc?

Answer 1

Are you logged in with the identical credentials and to the same database in both JDBC and in phpmyadmin? Been there, done that - was logged into a different (and empty) db and couldn't figure out why the queries were failing.