If your table contains large text values, there are a couple of options that help you display these:
If your data is large than 100K bytes, it is recommended to use the Display LOBs feature.
This window shows you the full value of a cell.
Note that if the data contains a hex0 character (x'00') the data will be truncated at that point. This is a limitation of the Windows text box used in this window. The way to avoid this problem, AQT will replace any hex0 characters with a ^ to enable the full value to be displayed.