Table merge process

A table merge is necessary the first time you run the IVP and any time you change existing environment options or suboptions that was not previously selected, and whenever the installation of service requires it.

The IVP is shipped with master tables in the IMS target and distribution libraries. The master tables contain all the possible IVP variables that can be used to create jobs and tasks. You select the environment and suboptions that are appropriate for your environment. The table merge process populates a set of customized tables from the master tables with the IVP variables, jobs, and tasks that are necessary for you to run the IVP based on your selected environment option and suboptions. Because the dialog updates these tables during its processing, the master tables must be copied into a user data set, INSTATBL. The table merge process performs this copy.

The table merge process is also used to update the INSTATBL data set with updates introduced with PTF service. The service contains a ++HOLD with a reason of ACTION when you must rerun the table merge process.

Optionally, you can run a table merge to reset the ! indicator that is displayed on the phase panels, such as the Execution phase (LST mode) panel. The table merge process does not change variable values that were changed by the copy-startup-variables process or by the CHG action in the variable-gathering phase.