Seeders

What it is

Seeders insert known initial or development data.

When to use it

Provide reference data or repeatable local examples.

Syntax

php artisan db:seed

Example

class CurrencySeeder extends Seeder
{
    public function run(): void
    {
        DB::table("currencies")->updateOrInsert(
            ["code" => "USD"], ["minor_units" => 2]
        );
    }
}

Common mistakes

Do not seed default production passwords; repeat seeding must have documented overwrite behavior.

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