Declarations must follow a certain order. Cursors must be
declared before declaring handlers, and variables and conditions
must be declared before declaring either cursors or handlers.
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MySQL AB :: MySQL 5.0 Reference Manual :: 17.2.6 DECLARE Statement Syntax - 0 views
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DECLARE is allowed only inside a BEGIN ... END compound statement and must be at its start, before any other statements.
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Each parameter is an IN parameter by default. To specify otherwise for a parameter, use the keyword OUT or INOUT before the parameter name.
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Specifying a parameter as IN, OUT, or INOUT is valid only for a PROCEDURE. (FUNCTION parameters are always regarded as IN parameters.)
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