What are the rank caches?
Answers were Sorted based on User's Feedback
Answer / swetha
During the session ,the informatica server compares an inout
row with rows in the datacache. If the input row out-ranks a
stored row, the informatica server replaces the stored row
with the input row. The informatica server stores group
information in an index cache and row data in a data cache.
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / shashiall
Swetha answer is correct.Expanding little bit with example.
If there r 3 same salaries..Rank will eliminate the
sequences..try this...rank will come 1,2,3,3,3,6..
To confirm this go to the SQL editor and check this with
Dense rank()function.
| Is This Answer Correct ? | 2 Yes | 0 No |
Diff B/W MAP Parameter, SESSION Paramater, DataBase connection session parameters.? Its possible to Create 3parameters at a time? If Possible which one will fire FIRST?
how DTM buffer size and buffer block size are related
difference between source based commit? and target based commit? which is better with respect to performance?
In a simple mapping when i use aggregate t/r with out any condition or group by, i am getting output as only last record in the table . can any one explain it please.........?
what is the incremental agrrigation?
What are the different threads in DTM process?
What are session parameters ? How do you set them?
follwing scenario two table using find maximum salary? table a table b 101 xxx 1000 106 6500 103 yyy 5000 108 800 104 din 6000 109 7000 105 dsh 200 110 3000
Write the unconnected lookup syntax and how to return more than one column.
Define Update Override?
What are the joiner caches?
What is a shortcut and copy in Informatica and how two are different with each other?