Getting Started
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5. Installing Java JDK
How to Install Required Oracle-Sun JDK 8+ on Fedora
To check your current JDK version:
javac --version && java -XshowSettings:properties -version 2>&1 | grep 'java.vendor'
If it’s the official Oracle JDK, the output will include:
java.vendor = Oracle Corporation
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6. Launching Oracle SQL Developer
Finally, to Launch Oracle SQL Developer
From Terminal:sqldeveloper
How to Create a desktop Menu SQL Developer Launcher

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