mysql front How to import the sql file of mysql5 into mysql4

1. Import the sql file exported from mysql5 into mysql5.
2. Use mysqldump -uroot -p1234 --opt --compatible=mysql40 -A -re:localhost.sql
--compatible=name The parameter description is as follows:
--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. Import e:localhost.sql into mysql4, such as
source e:localhost in the mysql command line. sql

The above introduces the method of importing the sql file of mysql front mysql5 into mysql4, including the content of mysql front. I hope it will be helpful to friends who are interested in PHP tutorials.