| Other Data Warehouse General Interview Questions |
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| Question | Asked @ | Answers |
| |
| What is data merging, data cleansing and sampling? | | 1 |
| how can one connect two fact tables ? is it possible ? how? | ABC | 6 |
| what is indexing ? what are different types of indexes
supported by oracle ? | | 2 |
| What is confirmed dimension? | | 3 |
| What is ETL process in Data warehousing? | | 2 |
| 5.Explain ODS ? | HCL | 1 |
| what is the difference between etl tool and olap tools | | 3 |
| What is MDX? | TCS | 1 |
| What is source qualifier? | | 1 |
| Where can one get more info about Data Warehousing? | TCS | 2 |
| Why do we use DSS database for OLAP tools? | | 2 |
| Compare ?Data mining? and ?Data Warehousing?? | | 2 |
| which automation tool is used in data warehouse testing? | | 1 |
| What is an OLTP (Online Transaction Processing) System? | | 2 |
| How can you define a transformation? What are different
types of transformations in Informatica? | TCS | 3 |
| What is DTS ? | | 1 |
| What is surrogate key? | IBM | 4 |
| Tell me one example for multi valued dimension or bridge
table? | TCS | 1 |
| What is the "junk dimension"? Give with examples? | | 3 |
| three ways sql*loader could load data, what are those three
types? | | 1 |
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