--- title: "NOT NULL in CREATE TABLE Statements | 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: - "not null [ODBC]" - "interoperability [ODBC], not null" ms.assetid: 3fb69943-f0c9-4ed2-aa42-20440e37e49d author: David-Engel ms.author: v-daenge --- # NOT NULL in CREATE TABLE Statements Some databases, and especially desktop databases, do not support the **NOT NULL** column constraint in **CREATE TABLE** statements. For more information, see the SQL_NON_NULLABLE_COLUMNS option in the [SQLGetInfo](../../../odbc/reference/syntax/sqlgetinfo-function.md) function description.