场景:我在B服读取A服的数据库表
A服-表结构
CREATE TABLE `users` ( `Id` int(0) NOT NULL AUTO_INCREMENT, `Name` varchar(16) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL COMMENT '姓名', PRIMARY KEY (`Id`) USING BTREE ) ENGINE = InnoDB AUTO_INCREMENT = 1878 CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
B服-表结构(感觉就是视图)
CREATE TABLE `a_users` ( `Id` int(0) NOT NULL AUTO_INCREMENT, `Name` varchar(16) CHARACTER SET utf8 COLLATE utf8_general_ci DEFAULT NULL COMMENT '姓名', PRIMARY KEY (`Id`) USING BTREE ) ENGINE = FEDERATED CHARACTER SET = utf8 COLLATE = utf8_general_ci CONNECTION = 'mysql://root:123456@127.0.0.1:3306/testdb/users' ROW_FORMAT = Dynamic;
引擎:ENGINE=FEDERATED (我每次会忘记修改这一项) 链接:CONNECTION = 'mysql://root:A服数据库密码@A服数据库ip+端口/A服数据库名称/A服数据库表名称'