How many scalar data types are supported in pl/sql?
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I have a table with 1 million records out of which 10,000 records are of unique records, then if I will implement index, then which type of index shall I use and why shall I use?
How to read/write files from pl/sql?
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What is sql*loader and what is it used for?
Can we write ddl statements in functions?
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Give the structure of the function ?
i have a table eno dno sal 1 10 200 2 10 150 3 10 100 4 20 75 5 20 100 i want to get sal which is less than the avg sal of thri dept. eno dno sal 2 10 150 3 10 100 4 20 75
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