BBA is a course which deals with mainly business administration., The marketing etc., whereas BCA deals with technical area i.e., computer technology which has high demand in today's era. But BBA is also has high job ranking for the marketing and management area.

As you know the job opportunities mainly knock you after the completion of the Master's degree as you will get paid more after the Masters. Atlast it mainly depends on your interest of study as with your performance you can get the job. But both the courses are job oriented.

Take a look at the link below

https://bschool.careers360.com/bba

Hope this helps you out.. Good luck