写一个存储过程，将一个数据表中的数据定时存入另一个表中，能够进行实时更新表中的数据，如果表中没有会直接插入新数据

CREATE DEFINER=`root`@`localhost` PROCEDURE `insert_test`()
BEGIN
DECLARE chkc INT;
DECLARE id_tmp INT;
DECLARE age_tmp INT;
DECLARE name_tmp VARCHAR(32);
DECLARE flag INT DEFAULT TRUE;//定义一个flag设置为TRUE
DECLARE cur CURSOR FOR SELECT id FROM testname;//定义游标，以testname表中的id字段为游标进行循环遍历
DECLARE CONTINUE HANDLER FOR NOT FOUND SET flag = FALSE;//如果程序有未声明的变量，flag变为FLASE循环遍历中止
OPEN cur;//打开游标
REPEAT//循环遍历
    FETCH cur INTO id_tmp;//将当前遍历到的赋值给声明的id_tmp变量
    SELECT COUNT(*) INTO chkc FROM testname_detail    WHERE id = id_tmp; 
    IF chkc = 1 THEN
    UPDATE testname_detail,testname    SET testname_detail.age = (SELECT age FROM testname WHERE id = id_tmp) WHERE testname_detail.id = id_tmp;
    ELSE
    SELECT age, name INTO age_tmp, name_tmp FROM testname WHERE id = id_tmp;
    INSERT INTO testname_detail(id,name,age) VALUES(id_tmp,name_tmp,age_tmp);
    END IF;
UNTIL flag = FALSE 
END REPEAT;
CLOSE cur;
END