Tools of ETL
Explain some of the ETL Tools?
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ETL Tools stands for the Extraction, Transformation, and Loading the data to the data warehouse for decision making. ETL refers to mechanism involved within the accessing and manipulating source data and loading it into the target database.
Explain the term precision in Data Structures? Answer: Precision considers as to the accuracy of the decimal portion of a value. It is the number of digits permitted
Define the term filter?
Briefly describe the differentiation between Data warehousing and Business Intelligence?
Specify the various advantages of the Lookup persistent cache?
Explain terms Procedure Cache in Sybase. Answer: It is the memory area where compiled query tree run for example: procedure and batch query.
Provide a brief introduction of the term slowly changing dimensions (or SCD)?
Illustrate the term data mart. What do you mean by it?
Give a brief introduction of the term Dimensional Modeling?
Briefly describe snow flake system design in database?
What is meant by the Drill Through?
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