Load Tracking Records FAQS
1. What is the purpose of loading tracking records?
- Loading
tracking records ensures that every insert and update operation on target
tables is recorded in a separate tracking table. This is essential for
compliance with regulatory requirements and maintaining an auditable
history of data changes.
2. What should the tracking table contain?
- The tracking
table should contain:
JOBID: Unique identifier for the ETL job.JOBNAME: Name of the ETL job.OPERATIONDATE: Timestamp when the operation
occurred.OPERATIONTYPE: Type of operation (Insert or
Update).- All columns from the target table being tracked.
3. How does the tracking table get populated?
- The tracking
table is populated using an
INSERT INTO SQL command. This command inserts
the required tracking data, such as the job details, timestamp, operation
type, and target table data, into the tracking table after each insert or
update operation.
4. How is the operation type (Insert or Update) determined?
- The operation
type is determined by checking the value of a flag, such as
IND_UPDATE. If IND_UPDATE = 'I',
the operation is classified as an "Insert." If it's any other
value (e.g., 'U' for Update), it is classified as an "Update."
5. Can the tracking table be created automatically if it
doesn’t exist?
- Yes, the
tracking table can be created automatically by extending the Integration
Knowledge Module (IKM). This customization allows you to check if the
tracking table exists and create it if necessary, before loading the
tracking data.
6. What if the tracking table already exists?
- If the
tracking table already exists, the system will simply insert the new
tracking records for each operation (Insert or Update) as part of the ETL
process. No additional creation logic is needed.
7. What happens if the insert command fails?
- If the insert
command fails, no tracking records will be inserted. It is important to
handle errors properly by implementing error logging and retry mechanisms
in the ETL process to ensure that tracking records are reliably inserted.
8. Can the tracking data be reviewed or audited later?
- Yes, the
tracking data can be reviewed or audited at any time. You can query the
tracking tables to inspect the historical records, including the operation
types, timestamps, and other metadata related to the insert or update
operations.
9. How do I verify the accuracy of tracking data?
- To verify the
accuracy of tracking data:
- Ensure that
JOBID and JOBNAME match the current
ETL job. - Check that
OPERATIONDATE reflects the correct timestamp. - Confirm that the
OPERATIONTYPE is
correctly labeled as Insert or Update. - Validate that all data columns from the target
table are correctly included in the tracking table.
10. Can I track operations for multiple target tables?
- Yes, you can
track operations for multiple target tables by creating a separate
tracking table for each one. Each tracking table will contain the same
structure and metadata as the target table, with an added suffix (e.g.,
_RGC).
11. How can I extend the tracking record loading process?
- The tracking
record loading process can be extended by adding additional metadata
fields or including custom logic to handle special cases. For example, you
might include the user who performed the operation or the source of the
data for auditing purposes.
12. Can I load tracking records for deletes or other operations?
- Yes, if
required, the tracking process can be extended to include delete
operations or other types of data changes. You can adjust the conditions
or SQL logic to track additional operations beyond just inserts and updates.
13. Is it necessary to track every operation?
- Tracking every
operation is typically required for compliance with regulatory standards.
However, depending on your organization's specific needs, you may decide
to track only certain types of operations (such as Inserts and Updates) or
specific columns in the target table.
14. What if the tracking table gets too large over time?
- Over time,
tracking tables may grow significantly. To manage this, you can implement
archiving strategies to offload old records or set up partitioning for
better performance and easier data management.
No comments:
Post a Comment