Download ((install)) Sql Developer 21.4.3 -

Locate the downloaded .zip file (e.g., sqldeveloper-21.4.3.x.x-x64.zip ).

💡 These checksums ensure your download hasn't been corrupted or tampered with during transmission.

Supports Windows 7, 8, 10, Windows Server 2008/2012, Linux, and Mac OS X.

| Resource | Windows | Linux | macOS | |----------|---------|-------|-------| | | Windows 7, 8, 10; Windows Server 2008/2012 | Oracle Linux 5.5, RHEL 5.5, SUSE 10 SP2, Ubuntu 10.04 | OS X 10.8.3 or later | | CPU | Pentium IV 2 GHz or faster | Pentium IV 2 GHz or faster | Dual 1.25GHz G4/G5 | | RAM | 2 GB minimum | 2 GB minimum | 2 GB minimum | | Display | 1024 x 768 resolution, 65536 colors | 1024 x 768 resolution | 65536 colors | | Hard Drive | 500 MB (with JDK installed) or 110 MB (without JDK) | 110 MB | 110 MB | | Java | JDK 8 or 11 (minimum 1.8 update 171) | JDK 8 or 11 | JDK 8 or 11 | download sql developer 21.4.3

In the Connections Navigator (usually on the left side), right-click Connections and select New Connection .

and click the download button. The file size is approximately 435 MB .

Locate or add the lines: AddVMOption -Xms512M and AddVMOption -Xmx2048M . Save the file and restart the application. Troubleshooting Common Issues "Cannot find a Java Development Kit" Error Locate the downloaded

(release date March 3, 2022).

Includes critical patch updates (CPUs) for improved security compliance.

Version 21.4.3 has specific system requirements. Ensure you meet these before downloading to avoid runtime errors. | Resource | Windows | Linux | macOS

Right-click the app and select "Open" the first time to bypass security warnings. Core Features of Version 21.4.3

Before you proceed with the download, verify that your system meets the requirements:

The IP address or server name where the database resides. Port: Typically 1521 for Oracle databases.

The tool requires Oracle Java 8 or 11 , with a minimum version of 1.8 update 171 (8u171).