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what is main difference between change capture and change
apply stages
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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 |
Hi, Please tell me how to solve this scenario in datastage ? Here we have 3 columns in a table TEST CODE,ENTRY DATE and BATCH The table looks like CODE ENTRYDATE BATCH 100 100716 1 100 100716 1 100 100716 1 200 122517 2 200 122517 2 302 555555 8 302 555555 8 302 555555 8 We need to create a seqno on grouping these 3 columns. The result should be like this. CODE ENTRYDATE BATCH SEQNO 100 100716 1 1 100 100716 1 2 100 100716 1 3 200 122517 2 1 200 122517 2 2 302 555555 8 1 302 555555 8 2 302 555555 8 3
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