Interested to Buy Any Domain ? << Click Here >> for more details...
What if we sort the data in descending order instead of increasing order in sorter t/f and send the data in aggregator t/f is there any performance downfall?
Please answer below. thank you.
- 4 Answers
- 8598 Views
- JPMorgan Chase, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / harish
No performance downfall. Example: if your choosing sort order on deptno asc/desc and sal desc.
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / sai
There is no performance difference while aggregation because Order by always comes after Aggregation.
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / bharath yadav
after sorting data in sorter tf enable sorted input in aggregator tf for better performance . if the sorted data key in sorter tf and aggregator tf differs then session fails.
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / me
If you use sorted input and do not sort data correctly, the session fails.
| Is This Answer Correct ? | 0 Yes | 2 No |
What is the difference between warehouse key and surrogate key?
Consider a Phone Log table as below. It records all phone numbers that we dial in a given day. SOURCE_PHONE_NUMBER DESTINATION_PHONE_NUMBER CALL_START_DATETIME 1234 4567 01/07/2011 10:00 1234 2345 01/07/2011 11:00 1234 3456 01/07/2011 12:00 1234 3456 01/07/2011 13:00 1234 4567 01/07/2011 15:00 1222 7890 01/07/2011 10:00 1222 7680 01/07/2011 12:00 1222 2345 01/07/2011 13:00 Please provide an SQL query to display the source_phone_number and a flag where the flag needs to be set to Y if first called number and last called number are the same and N if the first called number and last called number are different. Desired Output: Source Number Is_Match 1222 N 1234 Y
following scenario i have 1000 record flatfile source i want ist row to ist target 2nd eow to 2nd target 3rd row to 3rd target how will u do?
How to elaborate powercenter integration service?
Design a mapping to get the pervious row salary for the current row. If there is no pervious row exists for the current row, then the pervious row salary should be displayed as null.
What are two types of processes that informatica runs the session?
What is critical mapping?
what is unit testing?tell me proceedure
Can we call a stored procedure from a unix script which is run using command task
have you developed documents in your project? and what documents we develop in realtime?
Differentiate between joiner and lookup transformation?
how do the project develops? pls specify right from the start to end in step by steps.
Teradata 
