在迁移 laravel 5.1 中设置自动增量字段从 1000 开始

织梦狗教程 php问题

2022-01-01

Set Auto Increment field start from 1000 in migration laravel 5.1(在迁移 laravel 5.1 中设置自动增量字段从 1000 开始)

本文介绍了在迁移 laravel 5.1 中设置自动增量字段从 1000 开始的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

I need to start my ids from 1000 in user table, how could I create migration for this.

My current migration is:

public function up()
{
    Schema::create('users', function (Blueprint $table) {
        $table->increments('id'); // how can I start this from 1000
        $table->integer('qualification_id')->nullable();
        $table->integer('experience_id')->nullable();
    });
}

解决方案

It should be like this(not tested).

use IlluminateDatabaseMigrationsMigration;
use IlluminateSupportFacadesDB;

class MyTableMigration extends Migration {

     /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        $statement = "ALTER TABLE MY_TABLE AUTO_INCREMENT = 111111;";
        DB::unprepared($statement);
    }

    /**
    * Reverse the migrations.
    *
    * @return void
    */
    public function down()
    {
    }
}

Update

//Your migrations here:
Schema::create('users', function (Blueprint $table) {
    $table->bigIncrements('id')->unsigned();
    $table->integer('qualification_id')->nullable();
    $table->integer('experience_id')->nullable();
});

//then set autoincrement to 1000
//after creating the table
DB::update("ALTER TABLE users AUTO_INCREMENT = 1000;");

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