What is the use of nvl function?
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suppose we have a table in which 200 rows. i want to find 101 row ? what the query.... and how we find 4th and 5th highest salary and 1 to 10 highest salary
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I want to know last five transactions or records from emp table, from now?
Does sql between include endpoints?
Explain the purpose of %type and %rowtype data types?
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what is meant by databases
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what is the difference between undefined value and null value? : Sql dba
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