Perform the following steps to edit a function/procedure or SQL function:
The selected function/procedure or SQL function is displayed in the PL/SQL Viewer tab page.
If multiple functions/procedures or SQL functions have the same schema, name, and input parameters, only one of them can be opened at a time.
If you execute the function/procedure or SQL function before compilation, the Source Code Change dialog box is displayed.
The status of the completed operation is displayed in the Message tab page.
Refer to Executing SQL Queries for information on reconnect option in case connection is lost during execution.