MySQL cursor游标close语句

• Cursor close语句用来关闭之前打开的游标
• 如果关闭一个未打开的游标，则MySQL会报错
• 如果在存储过程和函数中未使用此语句关闭已经打开的游标，则游标会在声明的begin…end语句块执行完之后自动关闭

delimiter //
CREATE PROCEDURE curdemo2()
BEGIN
DECLARE done INT DEFAULT true;
DECLARE v_name varchar(64);
DECLARE v_id int; 
DECLARE v_dept_id int;
DECLARE cur1 CURSOR FOR SELECT id,name,dept_id FROM teacher;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = false;
open cur1;
fetch cur1 into v_id,v_name,v_dept_id;
while done do
select v_id,v_name,v_dept_id;
select 'row-----------' abc;
fetch cur1 into v_id,v_name,v_dept_id;
end while;
close cur1;
end;
//
delimiter ;