php - My sql sorting varchar field with numeric part -


hi have table data_table .i need title table.the title field (type varchar) contain alphanumeric data below

title --------- ab 2007 ab 2017 ba 2018 ba 2017 cd 2017 cd 2016

my desired output 

 title ---------  ba 2018  ab 2017  ba 2017  cd 2017  cd 2016  ab 2007

i tried cast .but didnt required result

select title, cast(title signed) casted_column data_table order `title` desc

use right last 4 digits , cast unsigned , sort 

select title  tbl order cast(right(title,4) unsigned) desc, title desc

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