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 Categories >> Software >> Data Warehouse >> Informatica
 
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generate Unique sequence numbers for each partition in session with Unconnected Lookup ? Hi All, Please help me to resolve the below issue while Applying partitioning concept to my Session. This is a very simple mapping with Source, Lookup , router, and target. I need to Lookup on the target and compare with the source data, if any piece of data is new then Insert, and If any thing change in the existed data then Update. while Inserting the new records to the target table I'm generating sequence numbers with Unconnected lookup, by calling the maximum PK ID from the target table. The above flow is working fine from last one year. Now I wish to apply the Partitioning concept to the above floe(session) At source I used 4 pass through partitions.(For Each partition different filter conditions to pull the data from source) at Target I used 4 passthrough Partitions. it is working fine for some data, but for some rows for Insert Operation , it is throwing Unique key errors, because while Inserting the data it is generating the same sequence key twice. In detail : 1st row is coming from 1st partition and generated the sequence number 1 for that row. 2nd row is coming from 1st partition and generated the sequence number 2 for that row 3rd row is coming from the 2nd partition generated the sequence number 2 again for that row. (it must generate 3 for this row) the issue is becuase of generating the same sequence numbers twice for different partitions. Can any one Please help me to resolve this issue. While Applying partitions how can I generate a Unique Sequence numbers from Unconnected lookup for Each partitioned data. Regrads, N Kiran.    0  9
Label in Informatica. How to remove existing Label.    1  46
who is the best faculty for informatica in hyderabad ameerpet?    0  326
What is a code page in Informatica    3  4486
A mapping contains (1) Source Table S_Time ( Start_Year, End_Year ) (2) Target Table Tim_Dim ( Date, Day, Month, Year, Quarter )    1  958
Two Default User groups created in the repository are ____ and ______    1  2200
Two different admin users created for repository are ______ and_______    0  483
When will you use SQL override in a lookup transformation?    1  596
What is the advantage of persistent cache? When it should be used.    1  521
COM components can be used in Informatica    0  432
Dimension Object created in Oracle can be imported in Designer Cubes contain measures    0  590
What are Business Components in Informatica?    0  487
How do you implement configuration management in Informatica?    0  394
What is mapplet and a reusable transformation?    0  391
What is the difference between a shortcut of an object and copy of an object? Compare them.    0  554
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Un-Answered Questions
 
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How do you implement configuration management in Informatica? 394
whats the logic to load the lower level of granularity of data to fact table. 553
Dimension Object created in Oracle can be imported in Designer Cubes contain measures 590
write a sql query following table? col1 col2 1 2 1 2 1 2 3 4 3 4 5 6 i want the output like unique duplicate col1 col2 col1 col2 1 2 1 2 3 4 1 2 5 6 737
In Datastage, we have row generator stage to generate dummy row. Is there any such transformation in Informatica. Thanks in advance, Kumar 4317
can we use bulk loading when we use look in mapping 316
how to load dimension table and fact table. plz tell me the steps. 513
Hi Everybody, I have one fixed width file as source and 4 oracle tables (relational) as target. What are the Unit test cases i need to implement ? 1.Using TextPad software i tested postion of the field 2.As per specification i tested like whether it is correctly mapped or not? Is there any other test case do i need to implement. If possible can any one give me the test cases Advance Thanks 358
Have you worked with/created Parameter file 79
Performance tuning( what you did in performance tuning) 55
what is unit testing?tell me proceedure 427
Repository user profiles 119
disable caching in a lookup transformation? 61
What are the steps involved in the migration from older version to newer version of Informatica Server? 121
wat are deployement groups in informatica, how it will be used for developers 239
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