Does truncate require commit?

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I have 2 table A and B. In A 1 lakh record is present. In b 20 thousand data is present. To get the unique data from table A and B which join we should prefer left inner join or right outer join. Please answer.

4 Answers   GE,

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What is procedure explain with program?

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list out some tools through which we can draw e-r diagrams for mysql. : Sql dba

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What are operators available in sql?

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What is clause?

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What are inner and outer joins examples of both?

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what is schema? : Sql dba

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What is the purpose of the partition table?

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What has stored procedures in sql?

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What is the use of a view in sql?

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How do you modify a table in sql?

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