How many clustered indexes can u create for a table in DWH? In case of truncate and delete command what happens to table, which has unique id.
Submitted by: AdministratorYou can have only one clustered index per table. If you use delete command, you can rollback... it fills your redo log files.
If you do not want records, you may use truncate command, which will be faster and does not fill your redo log file.
Submitted by: Administrator
If you do not want records, you may use truncate command, which will be faster and does not fill your redo log file.
Submitted by: Administrator
Read Online Data Warehousing Job Interview Questions And Answers
Top Data Warehousing Questions
☺ | What is the difference between aggregate table and materialized view? |
☺ | "A dimension table is wide but the fact table is deep," Explain the statement in your own words. |
☺ | What is the advantages data mining over traditional approaches? |
☺ | What are data validation strategies for data mart validation after loading process? |
☺ | Can you pass sql queries in filter transformation? |
Top Data Warehouse Job Categories
☺ | Warehouse Assistant Interview Questions. |
☺ | Ab Initio Interview Questions. |
☺ | Data Stage Interview Questions. |
☺ | ColdFusion Interview Questions. |
☺ | Data Warehouse Supervisor Interview Questions. |