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in Technique[技术] by (71.8m points)

php - Laravel Migration table already exists, but I want to add new not the older

I previously created users table. Now I have created a new migration to create a new books table inside my schema. When I try to run the command

php artisan migrate

It shows:

[IlluminateDatabaseQueryException]
SQLSTATE[42S01]: Base table or view already exists: 1050 Table 'users' alre
ady exists (SQL: create table `users` (`id` int unsigned not null auto_incr
ement primary key, `username` varchar(255) not null, `email` varchar(255) n
ot null, `password` varchar(255) not null, `created_at` timestamp default 0
 not null, `updated_at` timestamp default 0 not null) default character set
 utf8 collate utf8_unicode_ci)

Here is my new migration table:

<?php

use IlluminateDatabaseSchemaBlueprint;
use IlluminateDatabaseMigrationsMigration;

class CreateBooksTable extends Migration {
    public function up()
    {
        Schema::create('books', function(Blueprint $table)
        {
            $table->increments('id');
            $table->string('name');
            $table->string('auther');
            $table->string('area');
            $table->timestamps();
        });
    }

    public function down()
    {
        Schema::drop('books');
    }
}

How can I get rid of the error?

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1 Reply

0 votes
by (71.8m points)

In v5.x, you might still face the problem. So, try to delete related table manually first using

php artisan tinker

Then

Schema::drop('books')

(and exit with q)

Now, you can successfully php artisan migrate:rollback and php artisan migrate.

If this happens repeatedly you should check that the down() method in your migration is showing the right table name. (Can be a gotcha if you've changed your table names.)


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