What does dml mean?

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What does stand for in sql?

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what are date and time intervals? : Sql dba

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How do you run a query?

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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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I want to display the employees who have joined in last two months. (It should be executed randomly means If I execute the query in March it should display Jan and Feb joined employees. Same query if i execute in Feb, 2007 it should display dec, 2006 and jan 2007 joined employees.

15 Answers   Wipro,

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What is mdb stand for?

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How to pipe multiline string to isql?

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What is a join?

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What is the use of pl/sql table?

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How run sql*plus commands that are stored in a local file?

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What is the difference between alter trigger and drop trigger statements?

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