create

database/migrations/2023_08_20_143627_add_sn_in_book_titles.php

@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class AddSnInBookTitles extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('book_titles', function (Blueprint $table) {
+            //
+            $table->integer('sn')->index()->default(0);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('book_titles', function (Blueprint $table) {
+            //
+            $table->dropColumn('sn');
+        });
+    }
+}