When using the Query Builder, and you try to Drag and Drop tables to the editor to start building up queries, nothing happens and the editor remains blank.
Also no queriesare returned.
There could have been a problem during installation.
1. Close Toad
2. Go to C:\Documents and Settings\<user name>\Local Settings\Application Data\Quest Software folder ( some folders may be hidden )
3. Rename Toad for Data Analystsfolderto Toad for Data Analysts OLD
4. Reopen Toad and test Query Builder
Since this is an environment issue, anything can be the cause. The safest thing to do is to uninstall. Toad for Data Analysis does not have a Quest Installer, if it is bought or installed as a standalone. So the best way to completely uninstall all the TDA products is to use the Toad for Data Analysis Standalone.EXE.
Run this .exe from this link:https://support.quest.com/SUPPORT/index?page=homeand you will be asked whether you want to repair, upgrade or remove,
Click on remove and all the products will be cleared. Now reinstall TDA and everything should work fine from here.
If you are on a Trial version and you experience this, you should have registered your details when downloading the trial version. This will enable you to log in to run the .exe.