delimiter $$DROP FUNCTION IF EXISTS dbname.string_print$$CREATE FUNCTION dbname.string_print( str VARCHAR(20) ) RETURNS VARCHAR(20) BEGIN DECLARE copy_str VARCHAR(20); SET copy_str = str; RETURN copy_str; END $$delimiter ; SELECT dbname.string_print('Hello world'); delimiter $$DROP PROCEDURE IF EXISTS dbname.string_print$$CREATE PROCEDURE dbname.string_print( str VARCHAR(20) ) BEGIN DECLARE copy_str VARCHAR(20); SET copy_str = str; SELECT copy_str; END $$delimiter ; CALL dbname.string_print('Hello world'); 이번엔 예외처리... delimiter $$DROP PROCEDURE IF EXISTS db_name.procedure_name$$CREATE P.......
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