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3.6 Predetermined Join Column (PJC) Definitions

A Predetermined Join Column, or PJC, is a special feature of the LANSA Repository.

Unlike the other types of Repository virtual tables, a PJC is a virtual column whose value is determined by a value or values in another table. (Other Virtual Columns are always based on columns within their own table definition.) PJCs use access routes to determine the table relationships.

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  • Virtual columns can also be derived from other virtual columns.

Predetermined Column Definition:

3.6.1 PJC Column
3.6.2 PJC Column Details   Details   

3.6.3 PJC Type
3.6.4 PJC Source Column


Also See

Virtual columns are described in Virtual Column Concepts in the Developer's Guide.

Predetermined Join Columns are described in Predetermined Join Column Development in the Developer Guide.