- Purpose of Integration Process:
- The integration process is a crucial step in data mapping.
- It integrates data from the source or loading tables into the target datastore.
- A temporary integration table is used during this process.
- Integration Strategy:
- An integration strategy defines the steps involved in the integration process.
- Examples of Integration Strategies:
- Append:
- Optionally deletes all records in the target datastore.
- Inserts all the flow into the target.
- Control Append:
- Optionally deletes all records in the target datastore.
- Inserts all the flow into the target.
- Includes an optional flow control to manage the process.
- Incremental Update:
- Optionally deletes all records in the target datastore.
- Identifies new and existing records by comparing the flow with the target.
- Inserts new records and updates existing records in the target.
- Includes an optional flow control for better management.
- Slowly Changing Dimension (SCD):
- Implements a Type 2 Slowly Changing Dimension (SCD).
- Identifies fields that require simple updates in the target record.
- Histories the previous record state when necessary for change management.
- Server Configuration:
- The integration process may involve:
- A single server if the staging area and target are located in the same data server.
- Two servers if the staging area and target are on different servers.
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