Question

我想根据最后插入的记录捕获列的主键值。下面是表格结构：

SELECT CAT.Category_type_Name,
CAT.Description,
CAT.Image_url,
CAT.Price,
CAT.Weight,
Sum(TD.Quantity)'Quantity' from tbl_Transaction_Detail as TD 
inner join tbl_Category_type as CAT 
on TD .Category_Type_ID= CAT.Category_type_ID 
WHERE TD.Category_Type_ID = 31
ORDER BY CAT.Category_type_Name,
CAT.Description,
CAT.Image_url,
CAT.Price,
CAT.Weight

存储过程：

create table test
(
id varchar(100) not null primary key,
rmain varchar(100),
rpart bigint
);

请指教。我查看了Delimiter $$ DROP PROCEDURE IF EXISTS insTest$$ Create Procedure insTest() Begin Set @rmain := (select trim(concat('DNB', DATE_FORMAT(CURRENT_DATE(), '%y'), DATE_FORMAT(CURRENT_DATE(), '%m')))); IF ((trim(DATE_FORMAT(CURRENT_DATE(),'%m')) = 01) OR (trim(DATE_FORMAT(CURRENT_DATE(),'%m')) = 1)) THEN Set @rpart = 1; END IF; IF ((trim(DATE_FORMAT(CURRENT_DATE(),'%m')) != 01) OR (trim(DATE_FORMAT(CURRENT_DATE(),'%m')) != 1)) THEN Set @rpart := (select coalesce(max(rpart),0) from test) + 1; END IF; insert into Test (ID, rmain, rpart) values (concat(@rmain,@rpart),@rmain,@rpart); End$$ DELIMITER ;，但它适用于仅设置last_insert_ID()的主键列。提前谢谢......

Answer 1

为什么呢？如果您获得select max(id)或获得select id from tbl1 order by id desc limit 1会怎样？

见Transaction In MySQL。另外，将事务隔离级别设置为READ COMMITTED

declare last_id INT;
START TRANSACTION;
INSERT INTO tbl1(id,col1,col2) values(1001,'test','test');
SELECT last_id = id FROM tbl1 ORDER BY id DESC LIMIT 1
COMMIT;

Answer 2

<uses-permission>

这样你就可以访问最后插入的id

了

获取mysql中最后插入记录的主键列值

2 个答案: