There are times when you only want to take partial dump of a mysql table. You can use mysqldump command with one extra option “–where”. You will have to provide your where clause (partial dump condition) in the “–” where option.
Below is the command to take a partial dump of a table.
mysqldump -u [username] -p [databasename] [mytablename] --where " mycolumn = 'somevalue' " > filename.sql