MySQL存储过程在哪里

Question

Im trying to set procedure for insert row and use the value from parameter to change value in other table. But ...error, and me and Google = no solution...

INSERT INTO transakce (`id_transakce`, `akce_uzivatele_id`,            `typ_transakce`, `castka`, `datum_sazky`) 
VALUES (NULL, _akceuzivateleid ,_typ_transakce,_castka, _datum);

SET kreditUzivatele := SELECT ` kredit`  FROM `uzivatele` WHERE  uzivatele.id_uzivatele = _akceuzivateleid ;

SET kreditUzivatele := kreditUzivatele + _castka;
UPDATE `uzivatele` SET `kredit` := kreditUzivatele WHERE uzivatele.id_uzivatele =  _akceuzivateleid ;

One or more errors have occurred while processing your request: The following query has failed: "CREATE DEFINER= marek @ % PROCEDURE creditCharge (IN _akceuzivateleid INT(9), IN _typ_transakce VARCHAR(20) CHARSET utf8, IN _castka INT, IN _datum TIMESTAMP) NOT DETERMINISTIC MODIFIES SQL DATA SQL SECURITY INVOKER INSERT INTO transakce ( id_transakce , akce_uzivatele_id , typ_transakce , castka , datum_sazky ) VALUES (NULL, _akceuzivateleid ,_typ_transakce,_castka, _datum); SET kreditUzivatele := SELECT kredit FROM uzivatele WHERE uzivatele.id_uzivatele = _akceuzivateleid ; SET kreditUzivatele := kreditUzivatele + _castka; UPDATE uzivatele SET kredit := kreditUzivatele WHERE uzivatele.id_uzivatele = _akceuzivateleid ; " MySQL said: #1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SET kreditUzivatele := SELECT kredit FROM uzivatele WHERE uzivatele.id_uzi' at line 4

Screens: Before After

Answer 1

Can you try changing the below statement:

SET kreditUzivatele := SELECT ` kredit`  FROM `uzivatele` WHERE  uzivatele.id_uzivatele = _akceuzivateleid ;

to this:

DECLARE kreditUzivatele;
SELECT ` kredit` into kreditUzivatele FROM `uzivatele` WHERE  uzivatele.id_uzivatele = _akceuzivateleid ;

or this:

DECLARE kreditUzivatele;
SET kreditUzivatele = (SELECT ` kredit`  FROM `uzivatele` WHERE  uzivatele.id_uzivatele = _akceuzivateleid);