diff --git a/src/Command.php b/src/Command.php
index f73ca139..04baaa4a 100644
--- a/src/Command.php
+++ b/src/Command.php
@@ -60,11 +60,6 @@ public function showDatabases(): array
         return $this->setSql($sql)->queryColumn();
     }
 
-    protected function getQueryBuilder(): QueryBuilderInterface
-    {
-        return $this->db->getQueryBuilder();
-    }
-
     /**
      * Executes the SQL statement.
      *
@@ -105,43 +100,6 @@ public function execute(): int
         return $result;
     }
 
-    /**
-     * @psalm-suppress UnusedClosureParam
-     *
-     * @throws Throwable
-     */
-    protected function internalExecute(string|null $rawSql): void
-    {
-        $attempt = 0;
-
-        while (true) {
-            try {
-                if (
-                    ++$attempt === 1
-                    && $this->isolationLevel !== null
-                    && $this->db->getTransaction() === null
-                ) {
-                    $this->db->transaction(
-                        function () use ($rawSql): void {
-                            $this->internalExecute($rawSql);
-                        },
-                        $this->isolationLevel,
-                    );
-                } else {
-                    $this->pdoStatement?->execute();
-                }
-                break;
-            } catch (PDOException $e) {
-                $rawSql = $rawSql ?: $this->getRawSql();
-                $e = (new ConvertException($e, $rawSql))->run();
-
-                if ($this->retryHandler === null || !($this->retryHandler)($e, $attempt)) {
-                    throw $e;
-                }
-            }
-        }
-    }
-
     /**
      * Performs the actual DB query of an SQL statement.
      *