MySQL备份报错mysqldump: Got error: 1045: Access denied for user ‘root‘@‘localhost‘ (using password: YES）

Error

Solution

Add -hlocalhost or -h20.0.0.51 to the command

If you only need to export the structure of the table, you can use the -d option of mysqldump

The table structure of the entire library is as follows:

mysqldump -uroot -p -d databasename > name.sql

What if you only want to export the table structure and data of tables test1, test2, and test3?
How to export?

mysqldump -uroot -p -d databasename test1 test2 test3 > createtab.sql

The above is to export the specified table structure, the following one can export the specified table structure and data

mysqldump -uroot -p --tables databasename > name.sql

mysqldump -uroot -p -d databasename test1 test2 test3 > all-data.sql

Of course you can also use this command

mysqladmin -uroot -p flush-logs  	'进行增量备份'