Join Types

You can join two data sources in the following ways:

Tip: Some users find it helpful to prototype a database design first using dynamic joins, implemented by issuing the JOIN command or within the Master File. After the design is stable, to change the frequently used joins to static joins defined in the Master File, accelerating data source access. Static joins should be used when the target or cross-referenced data source contents do not change. You can change dynamic joins to static joins by using the REBUILD facility.

Note: Master File defined joins are sometimes referred to as cross-references.


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