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Online databases for trying out Oracle SQL queries?

sql
online-databases
sql-practice
database-management
Anton ShumikhinbyAnton Shumikhin·Sep 11, 2024
TLDR

For smooth sailing with Oracle SQL queries, Oracle Live SQL is a dependable weapon in your arsenal. Straightforward and zero-installation, it's the place to run, share, and learn SQL. Similarly, Apex Oracle lets you dive right in with a sturdy workspace complete with datasets and development environment features.

Quick start:

-- Why did the SQL query go to the bar? Because it couldn't JOIN the table! SELECT * FROM dual;

Both are excellent online resources with a good helping of educational material to accelerate your SQL journey.

Building Your SQL Skills with Oracle

The pathway to mastering SQL involves not just understanding the basics, but continually challenging yourself with complex queries and scenarios. Online platforms often present the opportunity to delve into real-world problems, encouraging you to think and solve like a professional SQL developer. Collaborative features on these platforms help build a community of learners, promoting shared knowledge and insights.

Exploring Advanced Concepts

As you level up from basic queries, there are several concepts to familiarise yourself with:

  • Understanding different DATA TYPES and their manipulation.
  • Executing TRANSACTION commands like COMMIT and ROLLBACK.
  • Immersing in STORED PROCEDURE, FUNCTION, and TRIGGER creation.

Tackling these topics will boost your confidence and equip you to handle intricate tasks.

Enhancing Portability Across Systems

These online platforms eliminate any local installation needs and promote SQL portability across different systems, a great advantage when switching between databases. Training using a range of online DBMS, will help you adapt to varying nuances across platforms.

Practicing through Diverse Data Scenarios

The online databases offer opportunities to work with varied anomalous data and edge cases:

  • Crafting queries that accommodate NULL values.
  • Dealing with time-series data and temporal queries.
  • Interacting with spatial databases and relevant SQL extensions.

Coping with these scenarios equips you with the skills to find SQL solutions in various contexts.