why do we need a datawarehouse when we have databases to store
data?
Answer / sriram
Database contains data called production data mostly and we can do operations but not recommended which is a performance issue and is always busy with application data
where as in DW,the data which we maitain is called historical data, on which we can play around.
Is This Answer Correct ? | 1 Yes | 0 No |
SOURCE LIKE I_D,F1,F2 --------- 100,N,Y 100,N,N 100,Y,N 101,Y,Y 101,N,Y 102,Y,N 103,N,N 104,Y,Y 105,N,N 106,N,Y 102,N,Y 105,Y,Y O/P LIKE ID flag1 flag2 101 Y Y 101 N Y 102 Y N 102 N Y 104 Y Y 106 N Y
How rejected rows are managed in datastage?
wt is the diff b/w odbc and oracle stage
i want anser this question empno,ename,sal 12,mmm_ww,200 13,nnn_xx,300 14,bbb_qq,400 which stages are take which types of logicks are doing pls help me i don't need "_"ex nnnxx this type i want
when u face critical situation in ur project, how to solve them?
1)How to do error handling in datastage? 2)Did sequential stage accepts .xl files ,xml? znd how?
source has 2 fields like COMPANY LOCATION IBM HYD TCS BAN IBM CHE HCL HYD TCS CHE IBM BAN HCL BAN HCL CHE LIKE THIS....... AND I WILL GET THE OUTPUT LIKE THIS.... Company loc count TCS HYD 3 BAN CHE IBM HYD 3 BAN CHE HCL HYD 3 BAN CHE PLZ SEND ME ANSWER FOR THIS QUESTION..........
Drop duplicate records ... SOURCE LIKE .......... ID flag1 flag2 100 N Y 100 N N 100 Y N 101 Y Y 101 N Y 102 Y N 103 N N 104 Y Y 105 N N 106 N Y 102 N Y 105 Y Y in above file if any id having both the flags as "N" then that corresponding id records should be dropped, in above case o/p should be as ID flag1 flag2 101 Y Y 101 N Y 102 Y N 102 N Y 104 Y Y 106 N Y Steps to do : 1) Identified the id’s that got duplicated (both the flag values having vales “N”) 2) Look up with these id’s to existing id’s to drop .
To see hidden files in LINIX?
HOw Hash Partion Works Thank you in Advance i have doubts on Hash Partion TEch Could please give me the clear understandable notation example e_id,dept_no 1,10 2,10 3,20 4,20 5,30 6,40 i have TWo Nodes/Three Nodes My questions are: 1).if i select hash key as e_id how Hash partion will distribute the data in to two NOdes/three NOdes 2).if i select hash key as dept_no how Hash partion will distribute the data in to two NOdes/three NOdes sivakumar.katta7@gmail.com
What are the differences between datastage and informatica?
There are two file are there .1st file contains 5 records and 2nd file contain 10 records in target they want 50 records.how can achieve this