What are the tuning techniques you applied during your last
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write a query row to column follwing source? quarter sales q1 5000 q1 9000 q1 7000 q1 6000 q2 5000 q2 4000 q2 3000 q2 1000 q3 4000 q3 3000 q3 1000 q3 2000 q4 5000 q4 400 i want the output? q1 q2 q3 q4 sales
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What is a surrogate key?
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I have some rows in source.I have to map half rows to one target and half rows to another target.i.e you wont know how many records in source.?Implement a mapping?
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