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  Tutorial: CURSORS

Cursors are used when the SQL Select statement is expected to return more than one row. Cursors are supported inside procedures and functions. Cursors must be declared and its definition contains the query. The cursor must be defined in the DECLARE sectio

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Cursors are used when the SQL Select statement is expected to return more than one row. Cursors are supported inside procedures and functions. Cursors must be declared and its definition contains the query. The cursor must be defined in the DECLARE section of the program. A cursor must be opened before processing and close after processing.

Syntax to declare the cursor :
DECLARE CURSOR FOR

Multiple cursors can be declared in the procedures and functions but each cursor must have a unique name. And in defining the cursor the select_statement cannot have INTO clause.


 

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