Answer / gurpreet singh

Normal Join - All matching rows of A and B
Master Outer join - All rows of detail including matching
rows from master
Detail Outer join - All rows of Master including matching
rows from detail.
Full outer join - All rows from Master and detail table
including matching rows.

Can we use the mapping parameter or variables developed in one mapping into any other reusable transformation?

0 Answers  

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1:when we develop a project what are the performance issue will raise?? KPIT 2:if a table have INDEX and CONSTRAINT why it raise the performance issue bcoz when we drop the index and disable the constraint it performed better??KPIT 3:what are unix commands frequently used in informatica??

1 Answers   KPIT,

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Suppose we have a (assume relational) source table Product_Id Month Sales 1 Jan x 1 Feb x . . . . . . 1 Dec x 2 Jan x 2 Feb x . . . . . . 2 Dec x 3 Jan x 3 Feb x . . . . . . 3 Dec x . . . . . . and so on. Assume that there could be any number of product keys and for each product key the sales figures (denoted by 'x' are stored for each of the 12 months from Jan to Dec). So we want the result in the target table in the following form. Product_id Jan Feb March.. Dec 1 x x x x 2 x x x x 3 x x x x . . So how will you design the ETL mapping for this case , explain in temrs of transformations.

5 Answers   Accenture, VAMA,

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What are the steps involved in the migration from older version to newer version of Informatica Server?

0 Answers  

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What is the Difference between sorter and aggregator?

2 Answers  

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can anyone explain me about sales project in informatica?

8 Answers   MBT, Satyam,

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How many number of sessions that u can create in a batch?

3 Answers  

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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.

2 Answers   Tech Mahindra,

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I am getting five sources in a day and i donot know when i get them. i need to load data into the target and run the session. but here i can't keep the session in running or can't stop the session. plz help me

6 Answers   Mastek,

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In Real Time what are the scenarios u faced, what r the tough situations u have overcome, and explain about sessions.

2 Answers   Cap Gemini, CTS, TCS, Tech Mahindra, Wipro,

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Define mapplet?

0 Answers  

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What are Dimensional table?

0 Answers   Informatica,

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