Here’s a 15 minute video showing you everything you need to know about using the data grids in Oracle SQL Developer.
Basically:
- settings fonts and look & feel
 - column sizing
 - column(s) sorts
 - client side filtering
 - copy & paste tricks
 - single record view
 - complex data type support – Spatial & BLOBs
 - dates & timestamps
 - inserting multiple rows via PASTE
 
I do NOT talk about the EXPORT feature – because then it would be a 30 minute video.