1、将mysql5里导出的sql文件导入到mysql5中。

2、用mysqldump -uroot -p1234 --opt --compatible=mysql40 -A -re:localhost.sql

--compatible=name参数描述如下：

--compatible=name Change the dump to be compatible with a given mode. By

default tables are dumped in a format optimized for

MySQL. Legal modes are: ansi, mysql323, mysql40,

postgresql, oracle, mssql, db2, maxdb, no_key_options,

no_table_options, no_field_options. One can use several

modes separated by commas. Note: Requires MySQL server

version 4.1.0 or higher. This option is ignored with

earlier server versions.

3、将e:localhost.sql导入mysql4,如mysql命令行中

source e:localhost.sql