在mysql存储过程中返回插入记录的ID

Question

I created stored procedure to insert data and I want to get the id of inserted record in same procedure

DELIMITER $$

USE `dbname`$$

DROP PROCEDURE IF EXISTS `sp1`$$

CREATE DEFINER=`root`@`%` PROCEDURE `sp1`(
    Cname VARCHAR(30),
    Camount INT(10)

)
BEGIN
    INSERT INTO user(    Username,    PAmount    )
VALUES(    Cname,    Camount)    ;

    END$$

DELIMITER ;

I tried

SELECT MAX(id) AS pid FROM user;

but this cause error in next query

error : Commands out of sync; you can't run this command now Commands out of sync; you can't run this command now

Answer 1

If you get Commands out of sync; you can't run this command now in your client code, you are calling client functions in the wrong order.

From here: http://dev.mysql.com/doc/refman/5.0/en/commands-out-of-sync.html

Answer 2

If the id is declared as a primary key , make use of last_insert_id() function which will resolve the issue. For more details refer to last_insert_id() in mysql documentation

https://dev.mysql.com/doc/refman/5.0/en/information-functions.html#function_last-insert-id