--- title: "Add a Nested Table to a Mining Structure | Microsoft Docs" ms.custom: "" ms.date: "06/13/2017" ms.prod: "sql-server-2014" ms.reviewer: "" ms.technology: "analysis-services" ms.topic: conceptual helpviewer_keywords: - "tables [Analysis Services], nested" - "nested tables" - "mining structures [Analysis Services], nested tables" - "adding nested tables" ms.assetid: 6cf9c701-9cff-4fae-94c2-73796c24ef59 author: minewiskan ms.author: owend manager: craigg --- # Add a Nested Table to a Mining Structure Use Data Mining Designer to add a nested table to a mining structure after it has been created by the Data Mining Wizard. ### To add a nested table to a mining structure 1. Select the **Mining Structure** tab in Data Mining Designer. 2. Right-click the mining structure to which you want to add a table column. 3. Select **Add a Nested Table**. The **Select a Nested Table Key Column** dialog box opens. 4. Under **Nested table**, select the table that you want to nest in the mining structure. 5. Under **Source column**, select the key column for the nested table. 6. Click **OK**. A new table column that contains the key column is added to the mining structure. For information about how to add additional columns, see [Add Columns to a Mining Structure](add-columns-to-a-mining-structure.md). ## See Also [Mining Structure Tasks and How-tos](mining-structure-tasks-and-how-tos.md)