delimiter //;
create procedure p1()
begin
declare a varchar(20);
declare b int;
declare cur1 cursor for select user from mysql.user;
declare continue handler for not found set b=1;
open cur1;
repeat
begin
fetch cur1 into a;
select a;
end;
until b=1
end repeat;
close cur1;
select b;
end;//
delimiter ;
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