diff --git a/core/lib/Drupal/Core/Extension/ModuleSchema.php b/core/lib/Drupal/Core/Extension/ModuleSchema.php
new file mode 100644
index 0000000000..75d90c9572
--- /dev/null
+++ b/core/lib/Drupal/Core/Extension/ModuleSchema.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Drupal\Core\Extension;
+
+/**
+ * Provides methods to access modules' schema.
+ */
+class ModuleSchema {
+
+  /**
+   * Returns the module's schema specification.
+   *
+   * This function can be used to retrieve a schema specification provided by
+   * hook_schema(), so it allows you to derive your tables from existing
+   * specifications.
+   *
+   * @param \Drupal\Core\Extension\ModuleHandlerInterface $handler
+   *   The module handler to use for calling schema hook.
+   * @param string $module
+   *   The module to which the table belongs.
+   *
+   * @return array
+   *   An array of schema definition provided by hook_schema().
+   *
+   * @see \hook_schema()
+   */
+  public static function getTables(ModuleHandlerInterface $handler, $module) {
+    if ($handler->loadInclude($module, 'install')) {
+      return $handler->invoke($module, 'schema') ?? [];
+    }
+    return [];
+  }
+
+}