Why do we use coalesce function in oracle?
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How to rebuild an index in oracle?
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What would you use to improve performance on an insert statement that places millions of rows into that table?
write a query to dispaly those name who is more than one in student table? example- in a student table sandeep kumar comes 4 times, rakesh kumar comes 2 times, ajit kumar comes 1 times so query will display sandeep kumar and rakesh kumar single times.
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16. Display the order number, order line number and the shipping date. If the shipping date is null, display the string <not shipped yet>.
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