Roxana Maria Haidiner articles - 56 total
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SQL GROUP BY Explained with Examples Roxana Maria...
How to Create Custom Data Types in DbSchema
Custom data types in DbSchema’s Logical Design help architects enforce consistent column definitions...
SQL GROUP BY Explained with Examples
When you work with databases, you often want summaries instead of just raw rows. How many orders...
Handle Large PostgreSQL Schemas with a GUI Tool
When a database is small, everything looks simple. You open the diagram, see a few tables, and it all...
Create MySQL ER Diagrams with a Free Design Tool
When learning or working with a database, the first step is to see how the tables connect. For MySQL...
SQL Joins Explained - INNER, LEFT, RIGHT, FULL
When working with databases, your data is often stored in more than one table. But how can you bring...
How to Design a PostgreSQL Schema Visually (Step-by-Step)
1. What is a Schema? In PostgreSQL, a schema is just a folder inside your database where...
What Is a Primary Key in SQL? Learn with Examples
A primary key is a column in a database table that uniquely identifies each row. That means no two...
Free SQL Tool to Understand Your Database Visually
You might already know how to write basic SQL. Let’s say you’ve written something like...
How to Generate Database Documentation (HTML5, PDF, Markdown)
Keeping your database documentation up-to-date it’s essential. Whether you're sharing your schema...
What Is a Foreign Key in SQL?
A foreign key is a validation rule in the database that links one table to another by matching...
Visual Database Management & Design Tool for IBM Db2
Are you working with IBM Db2 and want a better way to organize your database? DbSchema offers a...
How to Create ER Diagrams for SQLite with a Free Tool
If you're working with a SQLite database, one of the best ways to understand how it's built is to...
SQL Server 2025 - What’s New and How to Visualize the Schema
What's New in SQL Server 2025 SQL Server 2025 brings several important updates that make...
Database Design Errors to Avoid & How To Fix Them
Even now, in 2025, with powerful database tools and cloud platforms, developers still make elementary...
Top Free ER Diagram Tools for PostgreSQL in 2025
When working with PostgreSQL, especially on bigger projects or with other people, understanding the...
Create ER Diagrams for PostgreSQL with a Free Design Tool
Understanding a database starts with understanding its structure. For PostgreSQL users, one of the...
How to Use JSONB in PostgreSQL
What Is JSON? JSON (JavaScript Object Notation) is a lightweight format for storing and...
Design Better Databases - Best Practices
Originally written in German by Dr. Veikko Krypczyk Published in PHP Magazin 3/2025 Read the original...
How to Document SQL Server Schemas Visually in 2025
Working with SQL Server, you usually get great performance and solid tools, but documenting the...
How to Design a Relational Database Schema in 2025
Designing a good relational database schema is one of the most important steps when building any...
How to Document a PostgreSQL Schema in 2025
Let’s be honest, PostgreSQL is great, but documenting its schema isn’t. You open the database, and...
Best Oracle Database Design Tools in 2025
When you're looking for a database design tool, it's not just for fun - you actually need one! Maybe...
MySQL vs MongoDB - Visual Design with Real Data Models
When you’re starting learning databases, one of the first questions is: What are the differences...
Beginner’s Guide to Designing a Relational Database Schema
Setting up the structure of your database is one of the first and most critical things to get right...
Best MySQL Database Design Tools in 2025
Planning a new MySQL project? A good database design tool can help you move faster, stay organized,...
The Best Tools to Design Database Schemas Visually in 2025
If you’ve worked with databases, you’ve probably run into messy, confusing schemas-tables with...
SQL vs. NoSQL | Schema Design Differences Explained Visually
When planning a new application, one of the first things to figure out is how your data will be...
Design Database Schemas Without Internet Connection
"Bro, you don’t always need to be online to work on your schema." That’s what I told a colleague...
MongoDB Relationships - Embedded vs Referenced | Tutorial 2025
Introduction to MongoDB Installation & Database Creation CRUD Operations Embedded Documents and...