What is use of except clause? How does it differ from not in clause?
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A table contains list of customers and his city with other details. Each customer has a unique number and the table consists millions of data. Query is: I want to retrieve 10 customers from each city, no script, only from single query?
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How to find the second largest salary in the emp database and also How to find 3rd,4th and so on ........ in the emp database plz mail the answer @ mak2786@gmail.com
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