Data modeling is usually seen as a visual activity, but many data modelers prefer writing a SQL script to generate the data model. Catering to different teams and different ways of collaboration between teams, Vertabelo offers you three different options to create your data models. You can create a physical data model, a logical data model, or a SQL script. Creating a physical data model or a logical data model consists of a GUI-based approach.
Vertabelo has three types of paid accounts for businesses and professionals to choose from: Basic, Premium, and Team. We also offer a free Premium-level account for students and teachers called the Academic account. It’s part of our commitment to support the education community. Access to an Academic account enables both students and teachers to use Vertabelo for relevant courses, tests, demos, etc. without any cost. How do you know if you’re eligible for an Academic account?
In this article, you will learn some practical tips for organizing data models, creating readable layouts, and efficiently working with ERDs (entity-relationship diagrams). Database diagrams are to applications what blueprints are to buildings. The more components a building has, the more complicated it is to design. Unlike buildings, though, databases undergo persistent changes, which is why ER diagrams are used to understand the structure of the database and ensure that the most current models are deployed.
Data modeling isn’t a one-time activity. It is a continuous process. When building applications, developers use a version control system like Git to create multiple code versions while maintaining the history of changes and the hierarchy. Similarly, data modelers also need a feature that enables them to control the versions of their data models. That’s where SQL physical model versioning comes in handy. Maybe your current data model is changing.
Like many other software and database development activities, data modeling is a collaborative endeavor —perhaps even more so than the others. In addition to ensuring that they avoid anti-patterns and follow the best data modeling practices, data modelers also need to facilitate the swift and agile development of the data model. For that, there needs to be a way to collaborate on the data model design process. Although Vertabelo’s basic and premium plans are enough for individuals, teams may require a bit more.
Entity-relationship diagram (ER diagram) documentation is an important part of any database project. Find out how to use Vertabelo to generate database documentation from SQL. Writing good documentation is as hard as writing good code. Some say that teams who don’t invest in good documentation early on pay a high price later. Databases and data warehouses are central to business applications. Just like an application mandates good reference documentation for APIs, SDKs, repositories, etc.
An ER diagram that’s not easy to read isn’t much help. Learn how to align ERD elements – and better organize your diagram – in Vertabelo’s online data modeler. Designing great ER models is not just about creating the right tables, defining the correct data types, and adding references. To make the model readable and easy to understand, you should arrange it neatly. This is where the alignment and distribution of the different ER diagram elements (tables, reference lines, notes, subject areas, etc.
Complex database models are challenging to read and manage. In Vertabelo, you can use many different techniques, including color-coding tables and encapsulating groups of tables in subject areas. Doing this will increase the model’s readability, making it easier to navigate and search within it. A complex data model can be organized using subject areas. Subject areas in Vertabelo are named rectangles that group tables based on a functional or business context.
Better model organization will help you get work done faster. It will become easier to find objects in the model and to onboard new people to the team. In this article, we will give you tips and show you Vertabelo features that will help you effectively organize a large ERD. Sample ERD To discuss entity relationship diagram (ERD) organization, we will be using a recruitment system database model. By the end of this article, you will be able to make this model much better organized and more readable.
Database migration scripts make it possible to move from one version to another. Learn how to generate SQL migration scripts quickly and easily with the Vertabelo data modeler. Databases evolve; as applications mature over time, new features get added and existing features get modified. Consequently, just like the application source code, the database also needs to move from one version to the next. This movement is called database migration. It is one of the most common tasks given to database engineers.