Tuesday, February 24, 2015

Getting Count For Duplicate Values And Distinct Value

Getting Count For Duplicate Values And Distinct Value?

STEP 1:-
create table t1(t1 VARCHAR2(5),C2 VARCHAR2(5),C3 VARCHAR2(5));
create table t2(t1 VARCHAR2(5),C2 VARCHAR2(5),C3 VARCHAR2(5),C4 VARCHAR2(10));

INSERT INTO t1 values('a','b','c'); 
INSERT INTO t1 values('a','b','c'); 
INSERT INTO t1 values('x','y','z'); 
INSERT INTO t1 values('x','y','z'); 
INSERT INTO t1 values('a','s','d'); 
INSERT INTO t1 values('z','x','c'); 
INSERT INTO t1 values('v','b','n'); 
INSERT INTO t1 values('v','b','n'); 
INSERT INTO t1 values('q','w','e'); 
INSERT INTO t1 values('x','c','v'); 
COMMIT;


STEP:2 








Monday, February 16, 2015

Assigning a Batch Number Using Sequence Generator

Assigning a Batch Number Using Sequence Generator

In my case  i have scenario ..

batch_num column assign a values group of 1000 

In case  i used a sq transformation  and mod function in Informatica  expression transformation.




Or We can do it from different ways....:)




Monday, December 22, 2014

The workflow [xxxxxx] failed because an operating system profile was not specified and the Integration Service uses operating system profiles. Please check the Integration Service log for more information.

The workflow [xxxxxx] failed because an operating system profile was not specified and the 
Integration Service uses operating system profiles.  Please check the Integration Service log for more information.

I had faced this issue,now i am going to explain wht i did to resolve this.


Edit 
Use Operating System Profiles='YES' 
:)

Data engineering Interview Questions

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