Interested to Buy Any Domain ? << Click Here >> for more details...
When we enable pushdown optimization technique, two options
will be enabled (use view,..). Can anyone tell me how these
two options will work ?
When do we need to go for pushdown optimization technique ?
- 3 Answers
- 17352 Views
- IBM, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / parikhita prusty
MY dear friend when we used pushdown optimization it
increases the session performanse.
The integration service analyses mapping transformations and
determine which t?r logic to be sent to the target and
source database.
The integration servicetranslates the T/r logic into sql and
sends it into the database for processing.
The pushdown optimization is configured in 3 ways
i) Source side PDO
ii)Target side PDO
iii)Full side PDO(Both source and target side)
If anybody have some doubts u can ask in my mail id
parikhita2000@gmail.com
Regards
Parikhita
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / priyank
Hi,
For Pushdown optimization, we use
1. Temporary View for the below scenarios:
a. When the SQ or look up t/f contain a SQL override.
b. When the look up t/f is used with Filter t/f.
c. When an unconnected look up is used.
2. Temporary Sequence is used for the below scenario:
a. When a Sequence generator t.f is used in the mapping.
When Source side PDO is selected, the IS traverses from
Source side to the Target side till it comes across a
transformation whose logic cannot be pushed to the
database. If the logic for all the transformations can be
pushed to the database, still the target update override
query will be executed on the target database as logic of
transformations are pushed to the database whcih includes
the SQ query.
As per me, the push down optimizations are mainly used for
performance enhancement of the workflows as there are some
logics which can be exected faster on the database compared
to Informatica.
Please let me know all your comments if any on the above.
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / manojkumar
Thanks you so much parikhita.
Can you give me the exact two options(use view,..) which
will enabled when we select pod and how these options will
work?
When I select pod on source side, what about target insert
or update query ? will it be pushed to target db? Or only
select query will be pushed to source db ?
and when do we need to go for pushdown optimization
technique ? ofcourse it increses the performance. But at
what situation or circumstances we need to go for pod ?
| Is This Answer Correct ? | 0 Yes | 0 No |
a flat file having 1 laks records. if i want convert excel file what happen. (bcz a exccel sheet having 65536 colums but flat files one lak columns). how to get one laks colums in excel sheet .
What is tracing level and what are the types of tracing level?
wat s mapping parameter and mapping variable? how do you set that in a mapping?
Explain the different lookup methods used in informatica?
i have to extract data from a flat file.the flat file has 10 records.i have to extract the 1st and 5th record every time.how is it done.
How Union Transformation is an Active Trans?
What is the target load order?
if i have a file having record sal=10000,and when use router with two groups having condition sal>5000 in one group,sal>7000 in other group.and if two groups connected to two targets.in which target sal=10000 will go?
9 Answers BirlaSoft, Genpact, L&T, Syntel,
Which transformation should we use to normalise the COBOL and relational sources?
what is data driven in update strategy transformation?
Mention some types of transformation?
Define joiner transformation?
Teradata 
