Explain what are the basic needs to join two sources in a source qualifier?
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What is a Decision Tree Algorithm?
How can we do data cleaning?
How to eliminate duplicate rows from flat file?
Why should we use data ware housing and how can you extract data for analysis with example?
Hi Friends, Can anyone tell me. is there any certification in Database testing or BI testing or ETL testing international certification? Thanks ArunKumar
Why is chameleon method used in data warehouse?
Explain what type of indexing mechanism do we need to use for a typical datawarehouse?
Define Data Warehousing?
ware house management system is used?
Describe the differences between a data warehouse and data mart.
How to join 3 database like flat file, oracle, db2 in informatrica?
Explain what is a staging area? Do we need it? What is the purpose of a staging area?