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The official downloads for Oracle SQL Developer 21.4.3 are available through the Oracle SQL Developer Downloads 21.4.3 page
Java Requirement: Requires Oracle Java 8 or 11. Using the bundled JDK version is recommended to avoid manual configuration. oracle sql developer download 2143 download verified
Oracle SQL Developer 21.4.3: Secure Download and Installation Guide The official downloads for Oracle SQL Developer 21
Oracle typically offers two main packages for Windows users. Choose based on your existing setup: Windows 64-bit with JDK 8 included: Best for users who don't want to install Java separately. Source URL: must be an oracle
- Source URL: must be an oracle.com domain (e.g., https://www.oracle.com/tools/downloads or https://edelivery.oracle.com).
- HTTPS and valid TLS certificate.
- Check file name matches Oracle naming convention (e.g., sqldeveloper-
-no-jre.zip or sqldeveloper- .zip). - Verify file size against Oracle's listed size.
- Verify cryptographic signature or checksum if Oracle provides one (SHA256/SHA1). If Oracle lists a checksum on the download page, compute local checksum: