Toad
Selecting from table with CLOB column in Toad Schema Browser and SQL Editor etc returns Data Type Not Supported.
1. Click 'Show connection options', if connection options are hidden, on Toad Server Login window
2. Uncheck 'SQL* Net compatible Net 8' option
3. Click OK
Note:
If this option is grayed out, you will need to close all connections (File > End All Connections) before the above changes can be made.
