Loading data

You can use Load (option 3.4) to load data that was previously extracted with the FM/IMS Extract (option 3.3) utility into a database.

Load can use a Dynamic PSB or a Static PSB.

There are three types of loads:

No replace

The Load only attempts to insert the segment. If the Insert call receives an II status code, the Load does not replace the existing segment in the database with the load segment.

Replace

The Load attempts to insert the segment as it does for No replace. However, if the Insert call receives an II status code, the Load replaces the existing segment in the database with the load segment. Note: If a segment has a non-unique key or no key, existing segments in the database are not replaced. The load segments will be inserted even when there is an existing segment in the database with the same key.

Initial

This uses a Load PSB to insert the IMS segments into an empty, uninitialized database. If the database has not yet been emptied, you can use the Delete/define data sets option to prepare the files.

The tasks described in this section are:

• Loading into an initialized database
• Loading into an uninitialized database
• Load reports