what is main difference between change capture and change
apply stages
Answers were Sorted based on User's Feedback
Answer / shady
change capture stage catch holds of changesfrom two
different datasets and generates a new column called change
code....change code has values
0-copy
1-insert
2-delete
3-edit/update
where as change apply stage applies these changes back to
those data sets based on the chanecode column
| Is This Answer Correct ? | 40 Yes | 2 No |
Answer / dharma kaveli
the stage compares two data set(after and before) and
makes a record of the differences.
change apply stage combine the changes from the change
capture stage with the original before data set to
reproduce the after data set
| Is This Answer Correct ? | 20 Yes | 0 No |
Answer / abdullah
read answer 2 first because i`m appending this answer to it so u can understand more.
*change capture views you the records that were change only, without telling you the rest of of the original records
ex: if one records was changed among 5 records then it will view it alone.
-(it will take two input, the before data set and the after data set)
*change apply should take the original data set and the change capture data set and then apply the change to the original copy as an output. as a result you have now all the records including the new and changed ones.
| Is This Answer Correct ? | 3 Yes | 0 No |
HOW CAN WE SEE THE DATA IN DATASET?
What is ibm datastage?
What are the benefits of datastage?
i have a scenario in which i/p columns areID,salary with 1,1000 2,2000 and 3,3000 i need an extra column in the o/p named avg(salary)how can i get it?
how to get sum of sal based on dept_no and then sum of all sal irrespective of dept_no in same sql. output:- 10, 200(sum of sal for dept_no 10), 5000(sum of all sal)
in sequtial file 2 columns avaliable, i want only one column load the target. for this we can do by modify and copy stage. But here when using modify stage (in property drop column1) until it is ok. if target is data set How to view the data. with out using data management. what is the reason for this. if any body know this answer plz tel me. thanks.
in oracle target stage when we use load option and when we use upsert option?
I have 2 jobs.I want to ru job B if job A has run 3 times.How can I achieve this through datastage
what is push and pull technique??? I want to two seq files using push technique import in my desktop what i will do????
What is the difference between datastage and informatica?
How do you find the number of rows in a sequential file?
What r the existing server jobs in parallalism?