What is the difference between a local and a global variable?

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Sumit Kesarwani · Answer

A Local temporary table exists only for the duration of a connection or, if defined inside a compound statement, for the duration of the compound statement. A Global temporary table remains in the database permanently, but the rows exist only within a given connection. When connection is closed, the data in the global temporary table disappears. However, the table definition remains with the database for access when database is opened next time.

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What is the difference between a local and a global variable?

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