Yes it is worthful to pursue. Because the future scope of Oracle DBA Engineer is promising due to the increasing demand for database management in various industries. With the growth of cloud computing and big data analytics, the need for skilled database administrators will continue to rise. Staying up-to-date with industry advancements will help you advance your career as an Oracle DBA Engineer.
If you are interested in pursuing a career in DBA domain then I would like to you to go with this oracle rac certification training from Intellipaat. Upon completion of this training one can become a certified professional with all the required skills.
Before that do check out this video on how Intellipaat helped Abhishek to switch his career from support role to oracle dba engineer.