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find the list of mapping and workflow affecting the particular table in informatica

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Can anyone tell me how to find the list of mapping and the workflow that are using a particular table say X either as a source or target table?

posted Jan 13, 2015 by Amit Sharma

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1 Answer

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Informatica metadata repository stores and maintains information about all the objects in Informatica.So , you have to write an external query to find this :
SELECT SUBJECT_AREA , MAPPING_NAME
FROM REP_ALL_MAPPINGS
where MAPPING_NAME in (
SELECT MAPPING_NAME FROM REP_SRC_MAPPING
where SOURCE_NAME ='X')

And to find workflows :

 select REP_WORKFLOWS.SUBJECT_AREA, REP_WORKFLOWS.WORKFLOW_NAME
 from dbo.REP_WORKFLOWS
 join dbo.REP_WFLOW_RUN
 on REP_WORKFLOWS.WORKFLOW_ID = REP_WFLOW_RUN.WORKFLOW_ID
 where REP_WORKFLOWS.SUBJECT_AREA  in 
 (SELECT   SUBJECT_AREA 
  FROM REP_ALL_MAPPINGS
  where MAPPING_NAME in (SELECT MAPPING_NAME FROM REP_SRC_MAPPING
  where SOURCE_NAME ='X'));
answer Jan 16, 2015 by Shweta Singh
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+1 vote

I'm not exactly sure if it will cause an issue or not. But in our environment whenever selecting from large tables we need to include WITH(nolock) otherwise we get deadlocks between select statements and Informatica real time replication trying to populate those tables. Currently we are looking to use SQL jobs to purge old records from tables. Most tables will have less than 1000 rows deleted once a week. During initial purge process there will be several tables that will have millions of records deleted.

Not sure if it would be better to pause real time replication for duration of the purge or just to try to resolve conflicts once those arise.

I don't have a good way to test this in Dev environment because don't have same volume of people hitting server with request, real time updates and everything else that makes up normal load in production. In production this will be running once a week during slow hours that should minimize total load but still don't want to crash Informatica every time this is running.

Note: this question is NOT about how to write delete statements in SQL or breaking delete in small chunks but rather how to avoid conflicts with real time replication with Informatica product.

Database - SQL Server 2012
Replication - Informatica 9.0.1

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