Progress
Database Design
Guide


User-interaction Code

Progress allows you to include any type of 4GL statement within a database trigger block, including those that involve user interaction. However, it is not a recommended to include any statements that call for input from the user.

For example, if the user runs your procedure in batch mode, a trigger with a prompt causes the procedure to stop, waiting for user input. Also, if an application is written in ESQL, it can not receive user input.

NOTE: 4GL triggers that contain user interaction may fail with an error at run-time if they are invoked by an environment (such as ESQL-89) that has no user interface.


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