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delimiter //
create procedure ma()
begin
declare i int default 0;
while i<11 do
set i=i+1;
select i;
end while;
end //
delimiter ;


1+2+...+9+10

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SQL code:
mysql> call ma();
+------+
| j |
+------+
| 55 |
+------+
1 row in set (0.00 sec)

Query OK, 0 rows affected (0.00 sec)


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SQL code:
delimiter //
create procedure test07()
begin
declare i int ;
set i=1; --Õâ¸öµØ·½ÉèÖóÉi=1 ¿ÉÒÔÊäÈëµã¶«Î÷¡£¡£µ«ÊÇi=0ΪʲôÊÇÎÞÏÞÑ­»·£¿
while i<10 do
set i=i+1;
select i;
end while;
end //
delimiter ;



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