ENGCOM-4392: Database Rollback not working M2.3.0 #21151

 - Merge Pull Request #21151 from Stepa4man/magento2:MSI-1988
 - Merged commits:
   1. 07e3cf5
   2. b11652b

Author: magento-engcom-team

app/code/Magento/Backup/Model/Db.php

@@ -56,11 +56,12 @@ class Db implements \Magento\Framework\Backup\Db\BackupDbInterface
     private $getViewsBackup;
 
     /**
-     * @param \Magento\Backup\Model\ResourceModel\Db $resourceDb
+     * Db constructor.
+     * @param ResourceModel\Db $resourceDb
      * @param \Magento\Framework\App\ResourceConnection $resource
+     * @param Helper|null $helper
      * @param GetListTables|null $getListTables
      * @param GetViewsBackup|null $getViewsBackup
-     * @param Helper|null $helper
      */
     public function __construct(
         \Magento\Backup\Model\ResourceModel\Db $resourceDb,

app/code/Magento/Backup/Model/ResourceModel/Table/GetListTables.php

@@ -30,12 +30,14 @@ public function __construct(ResourceConnection $resource)
     }
 
     /**
+     * Get base tables
+     *
      * @return array
      */
     public function execute()
     {
         return $this->resource->getConnection('backup')->fetchCol(
-"SHOW FULL TABLES WHERE `Table_type` = ?",
+            "SHOW FULL TABLES WHERE `Table_type` = ?",
             self::TABLE_TYPE
         );
     }

app/code/Magento/Backup/Model/ResourceModel/View/GetListViews.php

@@ -29,6 +29,8 @@ public function __construct(ResourceConnection $resource)
     }
 
     /**
+     * Get view tables
+     *
      * @return array
      */
     public function execute()

app/code/Magento/Backup/Model/ResourceModel/View/GetViewsBackup.php

@@ -44,6 +44,8 @@ public function __construct(
     }
 
     /**
+     * Backup
+     *
      * @param BackupInterface $backup
      */
     public function execute(BackupInterface $backup)
@@ -58,6 +60,8 @@ public function execute(BackupInterface $backup)
     }
 
     /**
+     * Get connection
+     *
      * @return AdapterInterface
      */
     private function getConnection()
@@ -70,6 +74,8 @@ private function getConnection()
     }
 
     /**
+     * Get show create view
+     *
      * @param string $viewName
      * @return string
      */
@@ -85,6 +91,8 @@ private function getShowCreateView($viewName)
     }
 
     /**
+     * Get view header
+     *
      * @param string $viewName
      * @return string
      */
@@ -95,6 +103,8 @@ public function getViewHeader($viewName)
     }
 
     /**
+     * Get drop view SQL
+     *
      * @param string $viewName
      * @return string
      */