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                                            mysql常用命令

                                            select version()
                                            查找數據文件存放路徑
                                            show global variables like "%datadir%"

                                            services.msc打開服務可重啟mysql


                                            mysql提示got timeout reading communication packets的解決方法
                                            show GLOBAL variables like '%timeout%'


                                            set global interactive_timeout=400;
                                            set global wait_timeout=400;


                                            show GLOBAL variables like '%log_warning%'
                                            set global log_warning=1;
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