Exec Cics Assign

With XCTL, the working storage and the procedure division of the program issuing the command are released.The 1/0 areas, the GETMAIN areas, and the chained Linkage section areas remain.Mainframe Forum: A comprehensive repository for programming tutorials and technology news. Click upon those blue words to start learning in Cobol, DB2, CICS, JCL, CA7, APIs, Dev Ops, Agile, JAVA, SORT, Excel macro, python, and mainframe tools.

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Terminating the task every time the application needs a response from the user and then starting the next transaction when the user presses any attention key is pseudo conversational processing.

The XCTL command transfers control to another application having the same trans id but the START command initiates a new transaction.

This method of cursor positioning is called static cursor positioning.

A vast majority of the maps are defined as input/output.

The usual command to create a channel is the EXEC CICS PUT CONTAINER command, in which specifying the CHANNEL parameter will create the channel and also associate the container with it.

A channel will be deleted when it goes out of scope to the programs in the linkage stack of application programs CICS currently is using, meaning that no programs will be able to access it. Data Conversion The data conversion model channel applications use is much simpler than the model COMMAREA applications use, as the CICS systems programmer controls data conversion in COMMAREA applications, whereas in channel applications, it’s used by the CICS application programmer, using simple EXEC CICS API commands.Having retrieved the name of its current channel and, if necessary, the names of the containers in the channel, a server program can adjust its processing to suit the kind of data it has been passed.For a program creating a channel, the EXEC CICS ASSIGN CHANNEL command will return blanks unless the program issuing the command was invoked via an EXEC CICS START, EXEC CICS LINK or EXEC CICS XCTL command specifying a channel name.Additionally, we show the scope of channel CHANNEL2, which consists of program D (which created it) and program E (for which it’s the current channel).Lifetime of a Channel A channel is created when it’s named on an EXEC CICS command.Scope of a Channel The scope of a channel is the code (i.e., the program or programs) from which it can be accessed.Figure 2 shows the scope of channel CHANNEL1, which consists of program A (the channel that created it), program B (for which it’s the current channel), and program C (for which it’s also the current channel).All existing locks and queues also remain in effect.But with LINK, the program storage is also saved, since the transaction expects to return and use it.A HANDLE CONDITION command specifies what should be done when the specified condition occurs.Or it is equivalent to a conditional 'go to' statement.


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