Interested to Buy Any Domain ? << Click Here >> for more details...
Hi,
difference between loop and trap in business objects ?
Thanks in Advance
nvsraghu
- 2 Answers
- 17518 Views
- Infosys, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / gs2kumar@gmail.com
Loop is a continues path between the tables trap also is a kind of loop Due to oracle limitation some time it give multiple duplicate values when 3
tables join continuously with 1-N and 1-N and Cartesian
product also occurs. To resolve the traps and loops we should use alias, context and shortcut join. We can find the loops by checking Integrity check in Universe but can be find by view only, to resolve the fan trap better to go for alias and for chasm trap context.
| Is This Answer Correct ? | 8 Yes | 3 No |
Answer / vikram kumar
While creating or designing of universe with the designing tool like IDT or UDT we some time get errors like Loops and Traps. As per my knowledge the major difference between loops and traps is that, Loops are visible after one runs or go for integrity check while traps are in-visible in the universe design. The traps presence can only be seen while generation of reports with reporting tool like WEBI.
More to this i would also like to say that loops can be resolved by alias or use of context which depends on the scenario of the universe.
Ex - for applying context to resolve the loop, number of path depends on number of fact tables and there must be more then 1 fact table.
For alias we have to create the xerox copy of main table with a different name.
ex - suppose there are tables like country, region, sales, client and join all the 4 tables and after one go for integrity check, there would be loop formation. So, here the main table is our country, since under country, region, client and sales would be there. So, hence one have to click on country table and create alias of that like "Country_a".
Further to that, if context exist then in WEBI, it will pop out a error as -"INCOMPATIBLE CONDITION OF OBJECTS".
| Is This Answer Correct ? | 1 Yes | 0 No |
Can anybody tell me what are the tuning problems?
When we go for OLAP , and When we go for OLTP for generating the reports ?
What is the profile and package?
When any new universe changes are deployed how does the end user get the view of the new classes/objects added(aprt from specs doc)?
can we create aliases for every table beforehand? if yes whar are the disadvantages?
What is the merge dimension?
when to go for alias and when to go for contexts
How to create predefined filters in B.O.
. User wants to modify a report and wants to add additional data. How will you approach.
What do you mean by Object qualification?
Can we link the Universes from two different sourcess?Explain?
How would you format some text using css to be verdana and bold?
Teradata 
