前几天群里有人问MySQL的游标能不能嵌套使用，想当然地以为不能，后来试了下，居然可以，唉，不能随便想当然啊。例子如下：
CREATE PROCEDURE curdemo() NOT DETERMINISTIC CONTAINS SQL SQL SECURITY DEFINER COMMENT '' BEGIN declare done1,done2 int default 0; declare name1,name2 varchar(20); declare id1,id2 int;declare cur1 cursor for select id,name from test1; declare continue handler for not found set done1 = 1;open cur1; repeat fetch cur1 into id1, name1; if not done1 then insert into test3(name) values(name1); begin declare cur2 cursor for select id,name from test2; declare continue handler for not found set done2 = 1; open cur2; repeat fetch cur2 into id2,name2; if not done2 then insert into test3(name) values(name2); end if; until done2 end repeat; close cur2; set done2=0; end; end if; until done1 end repeat; close cur1; commit; END;
转载于:https://www.cnblogs.com/seawwh/archive/2011/10/28/2227489.html
