what are the features and advantages of object-oriented programming? : Sql dba

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What are the sql versions?

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What does over partition by mean in sql?

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write sub query for eliminating duplicate rows using analytical function?

3 Answers   Metric Stream,

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What is a loop in sql?

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Explain raise_application_error.

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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 can multiply values of a column? OR How can multiply value of a row of a column using a single query in SQL?

1 Answers   Pitney Bowes,

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when normalization is required

3 Answers   HCL,

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Why we use join in sql?

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what is single byte over head in oracle..?

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Why procedure is used in sql?

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