Concepts › CA IDMS/DB Reorg's Record Allocation Techniques › Allocating DIRECT Records

Allocating DIRECT Records

There are two methods of allocating DIRECT records. The method used depends on the record's page range in the old and the new subschema.

When the page range is identical in both the old and the new database, a DIRECT record automatically targets to the page it was stored on in the old database. If the target page is full, CA IDMS/DB Reorg allocates the direct record to the next available page where the entire record fits. If there is no page in the DIRECT record's page range and the record is variable length, CA IDMS/DB Reorg fragments the record.

When the new page range is different from the page range in the old database, a DIRECT record is allocated to the same relative position within that page range. In this way, the record is stored in the same relative location in the new database.