--- title: "Data Structure CRUD Overview" slug: "data-structure-crud-overview" description: "Learn how auto-generated CRUD Action steps let Designers create, read, update, and delete records for database-enabled Data Structures." tags: ["CRUD Actions"] updated: 2026-05-27T20:34:00Z published: 2026-05-27T20:34:00Z canonical: "documentation.decisions.com/data-structure-crud-overview" --- > ## Documentation Index > Fetch the complete documentation index at: https://documentation.decisions.com/llms.txt > Use this file to discover all available pages before exploring further. # Data Structure CRUD Overview ## Overview Decisions Data Structure Matrix To learn more, refer to the [Differences Between Data Structures](https://documentation.decisions.com/version-10/docs/differences-between-data-structures) article. After creating a Data Structure capable of writing to the database, Designers maintain its data internally by implementing **Create, Read, Update, and Delete (CRUD)** actions via Flow steps. CRUD Action steps are auto-generated after creating the Data Structure and are accessible under the **User Defined Types** step category sorted by its Data Structure type. Expanding User-Defined Types reveals the sub-categories tabulated below: | **Category** | **Contents** | | --- | --- | | [Case Entity](https://documentation.decisions.com/version-10/docs/case-entity-crud-actions) | Contains CRUD Flow steps for user-created Case Entities | | [CSV Structures](https://documentation.decisions.com/version-10/docs/creating-a-csv-data-structure) | Contains CRUD Flow steps CSV generated data types | | [CSV Structures [Database Stored]](https://documentation.decisions.com/version-10/docs/creating-a-csv-data-structure) | Contains CRUD Flow steps CSV generated data types | | [Database Structures](https://documentation.decisions.com/version-10/docs/database-structure-crud-actions) | Contains CRUD Flow steps for user created Database Structures | | [Database Structures [Leased]](https://documentation.decisions.com/version-10/docs/leased-entities) | Contains CRUD steps for leased Database Structures | | Defined Data Structures [Advanced] | Contains CRUD Flow steps for user-created Database Structures [Advanced] | | [Entities](https://documentation.decisions.com/version-10/docs/entity-structure-crud-actions) | Contains CRUD Flow steps for user created Entities | | [Entity Extensions](https://documentation.decisions.com/version-10/docs/entity-extension-crud-actions) | Contains CRUD steps for Entity Extensions | | Flow Execution Extensions | Contains CRUD steps for Flow Execution Extensions | | Folder Extensions | Contains CRUD steps for user created Folder Extensions | | [JSON Schema Structures](/version-10/docs/creating-types-json-schema) | Contains serialization and deserialization steps for user-defined JSON Schema Types | | JSON Structures | Contains serialization and deserialization steps for user-defined JSON Types | | XML Structures | Contains serialization and deserialization steps for user-defined XML Types | | XSD Structures | Contains serialization and deserialization steps for user-defined XSD Types | ![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/image-W5Z6RBLP.png)