Explain the etl (extraction, transformation, and loading)?
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What is the difference between a function and a trigger?
What is the difference between coalesce() & isnull()?
What is excution Plan in sql server
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Which are the olap features?
What it means to be triggered?
What the class forname () does?
System variable and temporary variables
What is better - 2nd Normal form or 3rd normal form? Why?
There are two tables (T1, T2) with different rows. Find the output of query. Select count(*) from T1,T2.
How should i optimize the time for execution of stored procedure having single input and many output from the different tables?
How to use clusters?
employee table has employee id ----------- empid ---------------- 1 2 3 3 3 4 5 5 5 6 6 6 7 here the values r repeated two times.how to select the repeated values only.i.e 3,5,6 should alone come.
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