How to add a column ‘salary’ to a table employee_details?

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Why do we use procedures in pl sql?

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What is the command used to fetch the first 5 characters of a string?

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What are triggers in sql?

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How does postgresql compare to mysql?

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What is the main difference between a UNION statement and a UNION ALL statement? 1. A UNION statement eliminates duplicate rows; a UNION ALL statement includes duplicate rows. 2. A UNION statement can be used to combine any number of queries; a UNION ALL statement can be used to combine a maximum of two queries. 3. A UNION statement can only combine queries that have parallel fields in the SELECT list; a UNION ALL statement can combine queries with differing SELECT list structures. 4. A UNION statement cannot be used with aggregate functions; a UNION ALL statement can be used with aggregate functions. 5. There is no difference between the two statements; they are interchangeable.

2 Answers   Saman Bank, Sonata,

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How to look at the current sql*plus system settings?

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Is drop table faster than truncate?

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What do you mean by field in sql?

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how to get a list of indexes of an existing table? : Sql dba

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What is sql in java?

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Which language is used in sql?

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