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Example 3: Resolving the Foreign Key Using a Special User Key
This example is specific to Siebel Industry Applications (SIA).
A typical example of using a special user key (rather than the normal U1 user key) to resolve foreign keys is the use of the special user key "S_ADDR_PER:Communications" in the resolution of foreign keys to S_ADDR_PER in SIA. This special user key contains only the column ADDR_NAME, in contrast to (ADDR_NAME, PER_ID) in the U1 user key.
The mapping of S_ORDER.BL_ADDR_ID in EIM_ORDER, for example, uses the special user key "S_ADDR_PER:Communications" instead of the U1 user key. In fact, mappings of all foreign keys to S_ADDR_PER in SIA use this special user key instead of the U1 user key.