fix: bad cursor state

src/Db/Connection.php

@@ -32,15 +32,19 @@ class Connection
           throw new SqlException('SQL There was an error executing the request');
         }
 
+        if (strpos($sql, "SELECT") !== false) {
             $rows = $statement->fetchAll($fetchMode);
-
             if (!is_array($rows)) {
                 throw new SqlException('PDO Unable to retrieve the result');
             }
-
             return new OdbcResultSet($rows);
         }
 
+        $statement->closeCursor();
+
+        return true;
+    }
+
     /**
      * Replaces de old execute($sql, $throwErrors=false)
      *