What operating systems are supported by oracle sql developer?


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Write a program that shows the usage of while loop to calculate the average of user entered numbers and entry of more numbers are stopped by entering number 0?

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What is bind reference and how can it be created?

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Explain what is a subquery ?

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How to get second highest salary from a table

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what are wild cards used in database for pattern matching ? : Sql dba

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What are aggregate functions in sql?

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What is the difference between having clause and where clause?

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