When I run a program in the debugger and try to view a variable value, all I see is

If you want to view or modify variable values during debugging, the program unit must be compiled with debug information. There are 2 ways to accomplish this:<OL TYPE=1>
[*] Enable the Debugger preference "Add debug information when compiling" (Tools > Preferences > Debugger tab page). Now you don't have to worry about debug information anymore, as each compilation implicitly adds it.

[*] Right-click on the program unit in the Object Browser and select "Add debug information".</OL>The debug information goes away if you compile it without the "Add debug information when compiling" preference, or when someone else compiles it without debug info.

SQL and PL/SQL code may execute cleanly, and even produce an output. PL/SQL code may compile and produce results, but this is part of the task. Does it do what you are expecting it to do? Are the results accurate? Does it behave as expected for high and low values, odd dates or names? Does it behave the same way when it