dbvisualizer is the sql client and database tool with the highest user satisfaction. it connects to all popular databases and runs on win, macos & linux.

stack overflow is the largest, most trusted online community for developers to learn, share​ ​their programming ​knowledge, and build their careers.

oracle offers a comprehensive and fully integrated stack of cloud applications and cloud platform services.

the official site for postgresql, the world's most advanced open source database

github is where over 100 million developers shape the future of software, together. contribute to the open source community, manage your git repositories, review code like a pro, track bugs and features, power your ci/cd and devops workflows, and secure code before you commit it.

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an online sql database playground for testing, debugging and sharing sql snippets.