Explain target update override in informatica


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source table have 3 records? and it is sucessfully loaded into target. and 4more records is added in to source .that means 7 records now in source. we have to load the remaining 4 records into the same trgt table with maintian top 3 records. how ?can any one give me the data flow of this logic plz?

5 Answers   Wipro,


tell me about your project functionality

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Why we use lookup transformations?

1 Answers  


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.

2 Answers   Tech Mahindra,


write sql query vertical to horiozontal following table id name 1 100 2 dinesh 3 india 1 101 2 suresh 3 india 1 103 2 prakesh 3 usa i want output like id name country 100 dinesh india 101 suresh india 103 prakesh usa

0 Answers   TCS,






how to sort date field in infomatica?

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What is the exact difference b/w IN and EXIST in Oracle..?

4 Answers   Wipro,


How do you load only null records into target? Explain through mapping flow.

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suppose we are using dynamic lookup cache and in lookup condition the record is succeeded but in target it is failed due to some reasons then what happened in the cache ?

3 Answers  


what is normalization? explain 1st NF, 2nd NF, 3rd NF

1 Answers   SunGard,


Hi All, I have three question. 1) How to remove the header and footer in a flat file in informatica? 2)How to load the first and last record of flat file into the target? 3)I have a Input and Output table. Input Name Salaray Month A 100 Jan A 200 Feb A 300 March B 400 April B 500 May B 600 June Output Name Salaray Month A 100 Jan A 300 Feb A 600 March B 400 April B 900 May B 1500 June How to implement and get the ouput as mentioned above. If Possible kindly provide the SQL query also. Kindly any one help to implement this concept. Thanks, Pradeep

3 Answers   CSC, iNautix,


scd methodology?

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