Answer / guest

BY USING FIRST FUNCTION, TO GET THE 1ST RECORD,
TO GET THE LAST RECORD , SIMPLY USE AGGREGATE
TRANSFORAMATION IN THIS DO NOT APPLY GROUP BY FUNCTION BY
DEFALUT IT WILL GENERATE LAST RECORD
OR
USE RANK TRANS
IN =>PROPERTIES NO OF TOP RANKS:1
NO OF BOTTOM RANKS:LAST RECORD

Answer / chandrasekar

I took the EMP table and we can use the below query in the
SQL override,

select * from emp where rownum=1 union select *
from emp where rowid=(select max(rowid) from
emp);

it will work.

Answer / kiran

take two rank transformations and take reusable sequence
generator connect the next value to both rank transformations
and in the rank transformations properties for the first one
take top and number of ranks as 1 for the second take bottom
and number of ranks 1 at the last take two instances of tgt
connect the ranktrans to two instances

What are the mapping paramaters and mapping variables?

1 Answers  

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who to split dimentions into sub dimention

3 Answers   Wipro,

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scenario: dept_no emp_nem 10 A, 10 B, 10 C, 10 D, 20 P, 20 Q, 20 R, 20 S output: dept_no emp_nem 10 A, 10 AB, 10 ABC, 10 ABCD, 20 ABCDP, 20 ABCDPQ, 20 ABCDPQR, 20 ABCDPQRS

1 Answers  

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Please let me know how we can implement the below scenario. In a single mapping,more than 500 sources (legacy,VSAM,relational) will be loading into only one target. Whenever I retreive the data(any record) from target, i need to find the details that the record belongs to which source. Thanks in advance..

5 Answers   iGate,

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Hi, Can someone send me the DWH and Informatica FAQ's at priti.singh84@gmail.com Thanks in Advance, preeti

1 Answers   Accenture, Patni,

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what is the purpose of surrogate key and diff between primary key&surrogate key

1 Answers   Cap Gemini,

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"Change cache" in Informatica ?

2 Answers  

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What do you mean by worklet?

0 Answers  

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I have source table 100 records after run session successfully but loads the target table 50 records only what happened that 50 records and how can i load remaining 50 records

5 Answers   Patni,

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What are mapping parametres and variables in informatica?

6 Answers   TCS,

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How informatica process data means how informatica works?

2 Answers   TCS,

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Suppose we have two source qualifier transformations sq1 and sq2 connected to target tables tgt1 and tgt2 respectively. How do you ensure tgt2 is loaded after tgt1?

0 Answers  

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