SQL Playground
Choose a dataset and write any query. Nothing to verify: it is a free sandbox. The database lives in your browser.
包含部门、员工、项目和分配的示例企业数据。供第1模块使用。
正在加载编辑器...
正在加载 SQL 运行时...
Choose a dataset and write any query. Nothing to verify: it is a free sandbox. The database lives in your browser.
正在加载 SQL 运行时...