HP 3000 Manuals HP 3000 Manuals
Answers Answer 1. A process is similar to a program in a conventional language. It initializes the environment to a known state. Answer 2. A function does not affect the current environment. When processing of a function is complete, processing returns to where the function was called from. When a process starts, HP ALLBASE/4GL initializes the environment to a known state. It closes all data files, clears all data buffers, and terminates any current non-background process, screen, function, report or decision table. Answer 3. Logic blocks may contain a maximum of 30 lines. Answer 4. When a logic block is generated, HP ALLBASE/4GL checks for the existence of data names, named records and files, and resolves pointers to these items. If you don't generate a logic block, these pointers cannot be resolved. Answer 5. The SHOW command redisplays the screen with the contents of the screen buffer. The SHOW *REFRESH command performs the data movements specified and then redisplays the fields on the current screen. Answer 6. KSAM and HP TurboIMAGE/iX Developers Only This command reads a record from the file product where the key field matches the contents of the current screen field. The record is read into the file buffer. The * refers to the current screen field. HP ALLBASE/SQL Developers Only If you use a SELECT command in an SQL logic block, you cannot use any other command in the same logic block. You cannot use the SELECT * FROM form of the SELECT command, and you cannot use the INTO clause in a SELECT command. Answer 7. SCREEN test Answer 8. You can call and execute a function in the following ways. Your answer should include any four of the following: * From a VISIT command in a logic block. * As a function on a screen field. * As an action item on a menu or decision table. * From a function key. * From a report. This completes the preparation of the application. Now you can start testing it. The next lesson explains the procedures for testing your application.