Free database design tools sql server

If a relationship has a key at each endpoint, it is a one-to-one relationship. Line Style The line itself not its endpoints indicates whether the Database Management System DBMS enforces referential integrity for the relationship when new data is added to the foreign-key table.

If the line appears solid, the DBMS enforces referential integrity for the relationship when rows are added or modified in the foreign-key table. If the line appears dotted, the DBMS does not enforce referential integrity for the relationship when rows are added or modified in the foreign-key table.

Related Tables The relationship line indicates that a foreign-key relationship exists between one table and another. For a one-to-many relationship, the foreign-key table is the table near the line's figure-eight symbol.

If both endpoints of the line attach to the same table, the relationship is a reflexive relationship. Skip to main content. Quality of Customer support.

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Live Project Expand child menu Expand. AI Expand child menu Expand. Holistics is a self-service BI platform that allows non-technical users to create their own charts without writing SQL or going to the data team. Data teams save time as they just have to define the data models once and they can use it everywhere, without writing the same SQL queries again and again. And Holistics has an in-built relationship diagram that helps you map relationships between tables and models.

Start a free day with Holistics now! No credit card required. You can also manage projects through the dashboard where you can open or delete projects. There is the option to view a version history of projects to keep track of any changes made. The Starter version is free and supports two database models with 10 tables per model.

You can start the free trial. It has an interactive layout feature that lets you design databases with diagrams. Elements like tables and foreign keys can be dragged and dropped onto the canvas. You can also create multiple layouts for different parts of the database schema.

You can reverse engineer schemas of other external databases. There is also a database visual query builder so the user can build queries in a visual format as well. The schema synchronization feature is also great for environments where you want to apply the schema to multiple databases. The synchronization process highlights the differences between projects and databases. You can also share the Schema project with your team to collaborate on changes. SmartDraw is a web-based diagram tool that allows you to automatically create your diagrams of databases.

All you need to generate the diagram is to export a CSV file. Once the database has been created you can edit it through drag-and-drop. The diagram design function has intelligent formatting so that diagrams will be automatically adjusted when you edit, add, or delete a shape. To further help new users use the program there are customizable diagram templates so you can build your diagram efficiently. There are over 34, different symbols to choose from.

Accessibility is something that SmartDraw does very well. There is a range of integrations with other tools such as Microsoft Office , G Suite , Confluence , and Jira so you can manage databases however you see fit. You can also import or export diagrams to and from Microsoft Visio.

You can sign up to try SmartDraw from this link here. You can create and edit database models without needing to write SQL scripts.