Oracle SQL Developer 21: A Comprehensive Guide to the Features and Functions
How to Download Oracle SQL Developer 21
If you are looking for a free, integrated development environment that simplifies the development and management of Oracle Database in both traditional and cloud deployments, you should consider Oracle SQL Developer 21. In this article, we will show you how to download and install this powerful tool on different operating systems, and how to use its features to work with your Oracle database better and faster.
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What is Oracle SQL Developer 21?
A brief introduction to the tool and its features
Oracle SQL Developer is a graphical tool that enables you to browse, create, edit, and delete (drop) database objects; run SQL statements and scripts; edit and debug PL/SQL code; manipulate and export data; migrate third-party databases to Oracle; view metadata and data in MySQL and other databases; and view and create reports. It supports Oracle Database versions 11gR2, 19c, and 21c, as well as Oracle Database in the cloud and on-premises. It also supports Oracle JDK versions 8 or 11.
Oracle SQL Developer has three interfaces: desktop, browser, and command line. You can choose the one that suits your needs and preferences. Some of the major features of Oracle SQL Developer are:
Full-featured PL/SQL IDE
Database administration
Complete data modeling solution
Third-party DBMS migrations to Oracle
Migrate Oracle on-premises to Oracle cloud
Query builder
Code insight
Refactoring
Data miner
Data modeler
Unit testing
REST data services
The benefits of using Oracle SQL Developer 21
Using Oracle SQL Developer 21 can bring you many benefits, such as:
It is free and easy to install.
It is compatible with different operating systems and platforms.
It has a user-friendly and customizable interface.
It has many features that can help you work with your Oracle database more efficiently and effectively.
It can help you learn Oracle SQL and PL/SQL better.
It can help you migrate your data from other databases to Oracle.
It can help you create and share beautiful and interactive reports.
It can help you troubleshoot and optimize your database performance.
How to Install Oracle SQL Developer 21 on Windows
The prerequisites and requirements for installation
To install Oracle SQL Developer 21 on Windows, you need to have:
A computer running Windows OS (32-bit or 64-bit).
A JDK installed (version 8 or 11). You can download it from The steps to download and install the tool
To download and install Oracle SQL Developer 21 on Windows, you need to follow these steps:
Go to the Oracle SQL Developer Downloads page and choose the download option that matches your system. For example, if you have a 64-bit Windows OS and you want to use the embedded JDK, you can choose the Windows 64-bit with JDK 8 included option.
Save the zip file to your preferred location and extract it to a new folder. For example, you can extract it to C:\sqldeveloper.
Open the folder where you extracted the files and double-click the sqldeveloper.exe file to launch the tool. If this is the first time you run the tool, it will prompt you to enter the full path to java.exe. You can either browse to the location of the embedded JDK (for example, C:\sqldeveloper\jdk\bin\java.exe) or enter the path to another JDK that you have installed on your system (for example, C:\Program Files\Java\jdk1.8.0_181\bin\java.exe).
Click OK to start Oracle SQL Developer 21. You will see the splash screen and then the main window of the tool.
How to customize and configure the tool
Once you have installed Oracle SQL Developer 21 on Windows, you can customize and configure it according to your preferences and needs. Some of the things you can do are:
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Change the look and feel of the tool by choosing a different theme, font size, color scheme, and layout from the Tools menu.
Enable or disable features and extensions from the Help menu.
Set up your database connections by clicking the green plus icon in the Connections panel or by choosing File > New > Database Connection.
Adjust your preferences for various aspects of the tool, such as code editor, database, debugger, formatter, migration, reports, etc. by choosing Tools > Preferences.
Update your tool to the latest version by choosing Help > Check for Updates.
How to Install Oracle SQL Developer 21 on Mac OS X
The prerequisites and requirements for installation
To install Oracle SQL Developer 21 on Mac OS X, you need to have:
A computer running Mac OS X (10.13 or later).
A JDK installed (version 8 or 11). You can download it from .
The steps to download and install the tool
To download and install Oracle SQL Developer 21 on Mac OS X, you need to follow these steps:
Go to the Oracle SQL Developer Downloads page and choose the download option for Mac OS X. For example, you can choose the Mac OS X 64-bit with JDK 8 included option.
Save the dmg file to your preferred location and double-click it to mount it. You will see a window with the Oracle SQL Developer icon and a link to Applications.
Drag and drop the Oracle SQL Developer icon to the Applications link to copy the tool to your Applications folder. Alternatively, you can copy the tool to any other folder on your system.
Open the folder where you copied the tool and double-click the Oracle SQL Developer icon to launch the tool. You will see the splash screen and then the main window of the tool.
How to customize and configure the tool
Once you have installed Oracle SQL Developer 21 on Mac OS X, you can customize and configure it according to your preferences and needs. Some of the things you can do are:
Change the look and feel of the tool by choosing a different theme, font size, color scheme, and layout from the SQL Developer menu.
Enable or disable features and extensions from the Help menu.
Set up your database connections by clicking the green plus icon in the Connections panel or by choosing File > New > Database Connection.
Adjust your preferences for various aspects of the tool, such as code editor, database, debugger, formatter, migration, reports, etc. by choosing SQL Developer > Preferences.
Update your tool to the latest version by choosing Help > Check for Updates.
How to Install Oracle SQL Developer 21 on Linux
The prerequisites and requirements for installation
To install Oracle SQL Developer 21 on Linux, you need to have:
A computer running Linux OS (64-bit).
A JDK installed (version 8 or 11). You can download it from .
The steps to download and install the tool
To download and install Oracle SQL Developer 21 on Linux, you need to follow these steps:
Go to the Oracle SQL Developer Downloads page and choose the download option for Linux. For exa