Integration Process
- 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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