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´æ´¢¹ý³Ì--------------------------------------------------
drop procedure if exists usp_simple;
delimiter //
create procedure usp_simple(in ip int, out op int, inout iop int)
begin
 select count(*) into op from t1;
 set op = op + ip;
 set iop = iop * 2;
end;
//
delimiter;
Ö´ÐУº
set @iop = 3;
call usp_simple(6,@op,@iop);
select @op,@iop
------------------------------
drop procedure if exists usp_simple2;
delimiter //
create procedure usp_simple2()
begin
 select * from t1;
end;
//
delimiter;
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call usp_simple2();
º¯Êý------------------------------------------------------
delimiter //
CREATE FUNCTION hello (s CHAR(20)) RETURNS CHAR(50)
RETURN CONCAT('Hello, ',s,'!');
//
delimiter ;
 
SELECT hello('world');
-------------------------------------------------------------
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1. ------------------------------------
CREATE FUNCTION myfunc () RETURNS INT
·                BEGIN
·                  INSERT INTO t (i) VALUES(1);
·                  RETURN 0;
·                END;
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SELECT myfunc();
2.--------------------------------------
delimiter //


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