DbSchema Blog

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MongoDB $lookup Explained - How to Join Collections

Learn how to use MongoDB's $lookup stage to combine documents from different collections, similar to SQL joins.

Mongodb • 27-Aug-2025

Create ER Diagrams for MySQL with a Free GUI Tool

Learn how to design and manage MySQL databases visually with ER diagrams. Reverse engineer existing schemas or create new ones from scratch.

Mysql • 26-Aug-2025

SQL UPDATE Statement Explained with Examples

The UPDATE statement in SQL is used to modify the data of an existing record in a database table. We can update single or multiple columns. Is part of DML.

Tutorials • 23-Aug-2025

SQL GROUP BY Explained with Examples

Learn how to use SQL GROUP BY with clear examples. Understand SUM, COUNT, AVG, and HAVING step by step. Beginner-friendly and easy to follow.

Tutorials • 21-Aug-2025

DbSchema Design Model - The .dbs Project File Explained

Learn how DbSchema saves your design model in a .dbs project file. Based on XML, easy to version in Git, and editable in any text editor.

Dbschema features • 21-Aug-2025

DbVisualizer Alternative in 2025 - DbSchema for Database Design

Best DbVisualizer alternative in 2025: DbSchema offers visual modeling, diagrams, Git integration, schema sync, and interactive documentation.

Design • 20-Aug-2025

DBeaver Alternative in 2025 - DbSchema for Database Design

Best DBeaver alternative in 2025: DbSchema offers visual database design, ER diagrams, Git integration, schema sync, and HTML5 documentation..

Design • 19-Aug-2025

How to Design a PostgreSQL Schema Visually (Step-by-Step)

PostgreSQL schema design tutorial. Learn visual database modeling with ER diagrams, create tables, set foreign keys, and generate documentation with a GUI tool.

Postgresql • 12-Aug-2025

SQL Joins Explained - INNER, LEFT, RIGHT, FULL

Understand SQL JOINs with clear examples. Learn how INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN work and when to use each. Beginner-friendly.

Tutorials • 08-Aug-2025

What Are Aggregate Functions in SQL? Learn with Examples

Learn SQL aggregation functions like SUM, COUNT, and AVG with simple examples. Understand how they work and generate them visually in DbSchema.

Tutorials • 07-Aug-2025