mysql数据库的安装：选择typical类型》install》next》next》configuretehmysqlservernow打勾点击finishdetailedconfigurationdevelopermachinemultifunctionaldatabasedecisionsupport(dss)/o

问题描述:IDEA连接本地mysql失败Connectiontolanyuekeji@localhostfailed.\08001\Couldnotcreateconnectiontodatabaseserver.Attemptedreconnect3times.Givingup.!(https://

ReplicationDriver针对Master/Slave，Mysqljdbcdrivrer:ReplicationDriverhttps://dev.mysql.com/doc/connectorj/8.0/en/connectorjmasterslavereplicationconnection.html(ht

建表createtablestudent(s_idstring,s_namestring,s_birthstring,s_sexstring)rowformatdelimitedfieldsterminatedby'\t';createtablecourse(c_idstring,c_namestring,t_i

项目中遇到一个需求，需要将多行合并为一行。表结构如下：NAME                           Null          Type\    N\_SEC\_CODE                NOTNULL CHAR(6

MySQL版本信息：root@db02datamysqlversionmysqlVer14.14Distrib5.6.36,forLinux(x86_64)usingEditLinewrapper选项：\A

配置垂直分表修改schema.xml(db1)cd/data/mycat/confcpschema.xmlschema.xml.rwh修改配置vischema.xml<?xmlversion"1.0"?<!DOCTYPEmyca

 1.创建数据库CREATEDATABASEdb1;2.创建数据表CREATETABLEtb1(usernameVARCHAR(20)NOTNULL,ageTINYINTUNSIGNED,salaryFLOAT(8,2)UNSIGNED

mysql之配置 客服端部分clientnobeep pipe socketmysqlport3306mysqldefaultcharactersetutf8 服务器部分mysqld

表模式：CREATE TABLE tbl_user (  id int(11) NOT NULL AUTO_INCREMENT,  name varchar(255) DEFAULT NULL,  age int(11) DEFAULT NULL,  PRIMARY KEY (id)