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-- 1,切换数据库 use `information_schema`; -- 2,查看数据库使用大小 select concat(round(sum(data_length/1024/1024),2),'MB') as data from tables where table_schema='we 阅读全文
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SQL DELETE FROM work WHERE id IN ( SELECT w.id FROM work w LEFT JOIN user u ON w.user_id=u.id WHERE w.url='https://www.hello.cn/works/id8353954' AND w 阅读全文
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设备:macOS 配置:64G idea 版本: IntelliJ IDEA 2020.3.2 (Ultimate Edition)Build #IU-203.7148.57, built on January 26, 2021 配置方法: Help -> Edit Custom VM Option 阅读全文
摘要:
mysql 版本: 8.0.23 设备:Macbook Pro 系统:macOS 10.15.7 错误信息: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (61) 问 阅读全文