BACKUP TABLE was removed in MariaDB 5.5.
BACKUP TABLE tbl_name [, tbl_name] ... TO '/path/to/backup/directory'
Note: Like RESTORE TABLE, this command was not reliable and has been removed in current versions of MariaDB.
For doing a backup of MariaDB use mysqldump or MariaDB Backup. See Backing Up and Restoring.
© 2019 MariaDB
Licensed under the Creative Commons Attribution 3.0 Unported License and the GNU Free Documentation License.
https://mariadb.com/kb/en/backup-table-deprecated/