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· Why we need user key column mapping?
User key column mapping in interface tables are used to resolve ROW_ID s for base tables, maintaining referential integrity.
· What is the relationship between base tables and interface tables?
–An interface tables may populate more than one base table.
–A base table may be populated by more than one interface table.
· What are the three important fields (mandatory columns) in interface tables?
–IF_ROW_BATCH_NUM: Number to identify all records that should be
processed in a batch.
–ROW_ID: Unique number to identify the record in the batch.
(Here is the not generated ROW_ID used on base tables).
–IF_ROW_STAT: Non-Null character value which is reset during the run.
· What is the use of EIM_T columns?
All interface tables having EIM_T columns used to hold temporary values and status during processing setup.
· Can you use EIM to populate added extension columns to a base table?
Yes. But you must add extension columns to the appropriate interface table and map the extension columns to the base table.
· Why we set trouble shooting flags?
Task parameters can override component level event logging to create additional information in the log.
Trace Flag = 1 à Record Processing steps.
Error Flags = 1 à Record details regarding failed rows.
SQL Trace Flags=8 à Record summary SQL.
Should only be done in test environment.
Dramatically impeds EIM Performance and generate large log files
· How will you verify EIM task?
Verify EIM Task Using
–Server Manager Logs
–SQL against the EIM and the Base tables
–Client Application to view data.
· What is mean by explicit primaries?
–Use the primary flag to set explicit primaries through EIM
–Use when the external system knows which child should be primary.
· What is mean by implicit primaries?
–Allow EIM to implicitly set primaries.
–Use the external system does not know the primary.
–Sets the primary to be the child with the lowest ROW_ID.
–Mimics auto primary in the application.