title DROP INDEX Statement Limitations | Microsoft Docs ms.custom ms.date 01/19/2017 ms.prod sql ms.prod_service connectivity ms.reviewer ms.technology connectivity ms.topic conceptual helpviewer_keywords DROP INDEX statement limitations [ODBC] ODBC SQL grammar, DROP INDEX statement limitations ms.assetid a8ab9259-af47-438f-9fff-042e8ebb1c58 author MightyPen ms.author genemi manager craigg DROP INDEX Statement Limitations The DROP INDEX statement is not supported for the Microsoft Excel or Text driver.