我现在尝试用增量值填充MySQL表。稍后可能会发生变化,为什么在这里自动解决方案无法解决。我正在phpMyAdmin的SWL控制台中工作

仅settingsOperationMixerId启用了AUTO-INCREMENT

我试图做一个循环:

DELIMITER ;
CREATE PROCEDURE fill()
BEGIN
    DECLARE v1 INT DEFAULT 1;
    DECLARE b INT DEFAULT 1; #counting upwards
    DECLARE c INT DEFAULT 1; #only 1 mixer
    DECLARE d INT DEFAULT 1; #product from 1-6


     WHILE v1 < 64 DO


        INSERT INTO `settingsoperationmixer`(`settingsOperationMixerId`,
        `settingsOperationId`, `mixerId`, `productId`) VALUES (NULL,b,c,d);

        IF d < 6 THEN SET d = d + 1;
        ELSE SET d = 1;
        END IF;

        SET b = b + 1;
        SET v1 = v1 + 1;
    END WHILE;
END;
DELIMITER ;


这应该循环通过63次,同时settingsOperationId将是1-63增量,并且productId应该从1-6变大,然后从1重新开始

并得到以下错误信息:

Error

SQL query:

CREATE PROCEDURE fill()
BEGIN
DECLARE v1 INT DEFAULT 1

MySQL said: Documentation
#1064 - You have an error in your SQL syntax; check the manual that corresponds to
your MariaDB server version for the right syntax to use near '' at line 3


我的表格的SQL-CODE可帮助解决问题:

-- phpMyAdmin SQL Dump
-- version 4.7.7
-- https://www.phpmyadmin.net/
--
-- Host: 127.0.0.1
-- Generation Time: Mar 30, 2018 at 05:13 PM
-- Server version: 10.1.30-MariaDB
-- PHP Version: 7.2.2

SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
SET AUTOCOMMIT = 0;
START TRANSACTION;
SET time_zone = "+00:00";


/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8mb4 */;

--
-- Database: `scm`
--

-- --------------------------------------------------------

--
-- Table structure for table `settingsoperationmixer`
--

CREATE TABLE `settingsoperationmixer` (
  `settingsOperationMixerId` int(11) NOT NULL,
  `settingsOperationId` int(11) NOT NULL,
  `mixerId` int(11) NOT NULL,
  `productId` int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

--
-- Indexes for dumped tables
--

--
-- Indexes for table `settingsoperationmixer`
--
ALTER TABLE `settingsoperationmixer`
  ADD PRIMARY KEY (`settingsOperationMixerId`);

--
-- AUTO_INCREMENT for dumped tables
--

--
-- AUTO_INCREMENT for table `settingsoperationmixer`
--
ALTER TABLE `settingsoperationmixer`
  MODIFY `settingsOperationMixerId` int(11) NOT NULL AUTO_INCREMENT;
COMMIT;

/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;

最佳答案

有更正

drop procedure if exists p;
delimiter $$
CREATE PROCEDURE p()
BEGIN DECLARE v1 INT DEFAULT 1;
DECLARE a INT DEFAULT 1; #autoIncrement
DECLARE b INT DEFAULT 1; #counting upwards
DECLARE c INT DEFAULT 1; #only 1 mixer
DECLARE d INT DEFAULT 1; #product from 1-6

 WHILE v1 < 64 DO
    INSERT INTO `settingsoperationmixer`(`settingsOperationMixerId`,`settingsOperationId`, `mixerId`, `productId`)  VALUES (a,b,c,d);
    IF d < 6 THEN
        SET d = d + 1;
     ELSE
        SET d = 1;
     end if;

    SET b = b + 1;
    SET v1 = v1 + 1;
END WHILE;
END $$
delimiter ;


如果要允许应用auto_increment,则不要将其包含在插入列表中

drop procedure if exists p;
delimiter $$
CREATE PROCEDURE p()
BEGIN DECLARE v1 INT DEFAULT 1;
DECLARE a INT DEFAULT 1; #autoIncrement
DECLARE b INT DEFAULT 1; #counting upwards
DECLARE c INT DEFAULT 1; #only 1 mixer
DECLARE d INT DEFAULT 1; #product from 1-6

 WHILE v1 < 10 DO
    INSERT INTO `settingsoperationmixer`(`settingsOperationId`, `mixerId`, `productId`)  VALUES (b,c,d);
    IF d < 6 THEN
        SET d = d + 1;
     ELSE
        SET d = 1;
     end if;

    SET b = b + 1;
    SET v1 = v1 + 1;
END WHILE;
END $$
delimiter ;
drop table if exists `settingsoperationmixer`;
create table `settingsoperationmixer`
(`settingsOperationMixerId` int auto_increment primary key ,`settingsOperationId` int, `mixerId` int, `productId` int)
;
call p();
MariaDB [sandbox]> select * from `settingsoperationmixer`;
+--------------------------+---------------------+---------+-----------+
| settingsOperationMixerId | settingsOperationId | mixerId | productId |
+--------------------------+---------------------+---------+-----------+
|                        1 |                   1 |       1 |         1 |
|                        2 |                   2 |       1 |         2 |
|                        3 |                   3 |       1 |         3 |
|                        4 |                   4 |       1 |         4 |
|                        5 |                   5 |       1 |         5 |
|                        6 |                   6 |       1 |         6 |
|                        7 |                   7 |       1 |         1 |
|                        8 |                   8 |       1 |         2 |
|                        9 |                   9 |       1 |         3 |
+--------------------------+---------------------+---------+-----------+
9 rows in set (0.00 sec)

10-07 13:29
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