how to join two tables without using joiner transformation
.advantages of joiner over lookup and vice versa.
Answer Posted / k.rameshyadav
Lookup T/R is always is an alternate for joiner.
If the sources are same i.e homogenous we can perform join at database level.
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
What is a staging area? What is the purpose of a staging area?
what are the facilities provided by data warehouse to analytical users?
What are the ETL Testing Operations?
What is etl process. How many steps etl contains explain with example?
When do we analyze the tables? How do we do it?
Explain about the data integration suite features?
What is tracing level and what are the types?
Identifying the bottlenecks in various components of Informatica and resolving them.
What do you understand by active and passive transformations?
5. How many repositories can we create in Informatica? 6. What is surrogate key? 7. What is difference between Mapplet and reusable transformation? 8. What is aggregate awareness? 9. Explain reference cursor? 10. What are parallel querys and query hints? 11. DWH architecture? 12. What are cursors? 13. Advantages of de normalized data? 14. What is operational data source (ODS)? 15. What is meta data and system catalog? 16. What is factless fact schema? 17. What is confirmed dimension? 18. What is the capacity of power cube? 19. Difference between PowerPlay transformer and power play reports? 20. What is IQD file? 21. What is Cognos script editor? 22. What is difference macros and prompts? 23. What is power play plug in? 24. Which kind of index is preferred in DWH? 25. What is hash partition? 26. What is DTM session? 27. How can you define a transformation? What are different types of transformations in Informatica? 28. What is mapplet? 29. What is query panel? 30. What is a look up function? What is default transformation for the look up function? 31. What is difference between a connected look up and unconnected look up? 32. What is staging area? 33. What is data merging, data cleansing and sampling? 34. What is up date strategy and what are th options for update strategy? 35. OLAP architecture? 36. What is subject area? 37. Why do we use DSS database for OLAP tools?
What are the steps involved in etl process?
List few etl bugs?
What is a mapping, session, worklet, workflow, mapplet?
What is partitioning? Explain different types of partitioning?
Dear All, Can anyone tell me that from where i can get Power Center 8.5 S/W for Linux and how can i install Power Center 8.5 or any 7.x series on Linux Platform. Thanks in advance