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  1. Preface
  2. Using the Designer
  3. Working with Sources
  4. Working with Flat Files
  5. Working with Targets
  6. Mappings
  7. Mapplets
  8. Mapping Parameters and Variables
  9. Working with User-Defined Functions
  10. Using the Debugger
  11. Viewing Data Lineage
  12. Comparing Objects
  13. Managing Business Components
  14. Creating Cubes and Dimensions
  15. Using the Mapping Wizards
  16. Datatype Reference
  17. Configure the Web Browser

Data Flow for Changed Rows

Data Flow for Changed Rows

The following table describes the data flow for changed rows. For each changed row in the source, this data flow creates a new primary key, sets the beginning of the effective date range, and inserts the row into the target:
Transformation Name
Transformation Type
Description
FIL_InsertChangedRecord
Filter
Uses the following filter condition to filter out any rows from EXP_DetectChanges that are not marked changed (TRUE):
ChangedFlag
. Passes changed rows to UPD_ChangedInserts.
UPD_ChangedInserts
Update Strategy
Uses
DD_INSERT
to insert rows to the target.
SEQ_GenerateKeys (same Sequence Generator as above)
Sequence Generator
Generates a value for each changed row written to the target, incrementing values by 1.
Passes values to EXP_KeyProcessing_InsertChanged.
EXP_KeyProcessing_InsertChanged
Expression
Passes generated values to the target to populate the PM_PRIMARYKEY column in the target.
Uses
SYSDATE
to populate the PM_BEGIN_DATE column in the target, marking the beginning of the effective date range.
T_
TargetName
2
Target Definition
Instance of the target definition allowing changed rows to be inserted into the target.


Updated July 02, 2020