You can easily visualize existing SQLite databases in Luna Modeler. And in case there are changes in the database, you can use the Project Update feature to update your project and the ER diagram.
If you modeled your database design from scratch and then created the SQLite database, do the following: Create a connection on the Connections page.… Read the rest
If you have created a project using reverse engineering, you have already saved the database connection and the project remembers this connection. So just click on the Update button and choose Update with default connection. The comparison will happen immediately.
A form will appear with a summary of the changes and you can accept the changes or not.… Read the rest
How to create ER diagram of PostgreSQL database running in Heroku? With Luna Modeler, the process is simple. Just create a database connection, retrieve the information from Heroku Postgres and create a project containing the ER diagram. But let’s start one step at a time.
All database connections are available in the Connections section. To create a new connection, click the Connections button on the main toolbar, and then click Create New Connection. A new modal form opens. Select PostgreSQL and enter the connection details.
When you are finished, click the Save Connection button.
Your new PostgreSQL connection will appear in the list of all database connections.… Read the rest
To generate SQL scripts from your PostgreSQL project click the SQL Script icon on the main toolbar. New modal opens. Click Save Script and select a location where the file should be stored.
You can control how the script will be generated on the Generation settings tab
The order in which the objects will be in the resulting SQL script can be modified on the Order items tab.… Read the rest
Domains can be defined in a similar way as Enums (enumerated types). In the main menu, click Others and select Domain. Then click the diagram area and add a new graphical object to the canvas.
Another way to add a Domain to the diagram is via the context menu.
Specify name, description, and other properties for your newly created domain in the right-side panel.… Read the rest
Enumerated types in PostgreSQL projects can be created as reusable objects. In the main toolbar click Other and select Enum from the drop-down.
You can also add new object via context menu:
Then click the diagram area to place a new graphical representative to the desired position.
In the right-side panel, you can specify the Name for the Enum type and Enum values.… Read the rest
Graphics for PostgreSQL entity relationship diagrams (ER Diagram) can be defined on three levels. Global graphics can be specified on a project level, you can modify colors on diagram level and properties can be modified also on selected object level.
If you wish to change background color, line color or footer color (e.g.… Read the rest
Quick start guide for PostgreSQL database design.
To create a new project, click New on the main toolbar and select the PostgreSQL project type.
Basic database objects can be added to your project/diagram by clicking the appropriate icon on the main toolbar.
Then click the diagram area.… Read the rest
Making a comparison of document-based database systems like MongoDB and traditional relational databases like PostgreSQL is not a simple task. In fact, it is impossible to recommend one database platform, because everything depends on your requirements and the goals you wish to achieve. For some use cases, MongoDB can be the preferred solution, for many other use cases PostgreSQL can be the better option.… Read the rest