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1 复制表结构及数据到一个新表：create table thenewtablename  select * from theoldtablename;2 只复制表结构到新表：create table newtablename select * from oldtablename where 1==2;                                或者 create ta...

from:http://www.cnblogs.com/cnkenny/archive/2009/04/22/1441297.html  一.MYSQL的命令行模式的设置：桌面->我的电脑->属性->环境变量->新建->PATH=“；path\mysql\bin;”其中path为MYSQL的安装路径。二.简单的介绍一下命令行进入MYSQL的方法：1.C:\...

 the below code runs error:"You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '?'" String sql="select * from l...

select * from A left join B,C on A.a1=B.b1 and B.b2=C.c1;   这样执行的话报错 select * from A left join B on A.a1=B.b1 left join C on B.b2=C.c1;   这样三个表连接可以。