Well, for example, if you have a look at this issue: Is this a bug? data undefined in selectedRow it's sometimes hard to debug.
My query returns no results there although I was under the impression that it should, given the parameter values and the query.
Not being able to see what statement is sent to the sql server (I just get 0 results in the Preview) makes it hard sometimes.
And sometimes I get data type errors (int vs string / datetime formats).
Oh, I found something now. After clicking preview and then in the query editor a message appears below the query window. Didn't know that!
