What is message subfile in as400?
Message subfile · Message subfile as the name signifies is a subfile of messages. It is a special subfile specially designed to hold messages. · Message subfile loads itself automatically at runtime loads with the messages from program message queue to display it on the screen.
What is subfile?
A subfile is a group of records that is read from or written to a display-device file. For example, a program reads records from a database file and creates a subfile of output records. When the entire subfile has been written, the program sends the entire subfile to the display device in one write operation.
Which is the display file keyword?
You use this file-level keyword to specify that the records in the display file are written right to left on the display. You use this file-level keyword to specify the display size to which your program can open the display file. You use this field-level keyword to activate the Dup key on the display station keyboard.
What is the difference between CA and CF in as400?
What is the difference between CA and CF? CA- Command Attention Key- Does not read values from the screen. CF- Command Function Key- Read values from the screen. If you want to read from a screen using a function key such as F6=Accept, define that key as CF06 and indicator 06.
How do I create a display file in as400?
STRSDA (Start Screen Design Aid) Start the screen design aid by using STRSDA and select option-1. Option-1 selection results into the screen below. Press ENTER and select option-1 to add new record. Option-1 provides the screen to add a new record to the display file.
What is the difference between CA and CF?
What is display file in as400?
Display files are DDS files that enable us to create AS/400 menus and screens to interact with the user. Display files can have several records. Each record defines part of the screen’s appearance. These records may or may not overlap each other.
How do I delete a subfile record?
If you know the record number of the record you want to delete, you could just say something like this: dcl-s rrn Int(5); rrn = /* record to delete */ delete rrn subfile; Or if you don’t know the record number of the record to delete you could read through the subfile records to find it, and delete it.
What is DDS IBM?
DDS is a convenient alternative to describe data attributes on the IBM i operating system. The file types that use DDS are physical and logical files, display files, printer files, and intersystem communications function (ICF) files.