I am a working Oracle DBA looking to obtain my credentials. I see the following four certifications available from Oracle University. The first two are 2019, for Oracle 19c, the second two are AI for 23/26ai I would imagine. Do the second two respectively supersede the first two? Are all four worth getting or will the first two be retired soon and I should just focus on the second two?
1Z0-082 - Oracle Database Administration I
1Z0-083 - Oracle Database Administration II
1Z0-182 - Oracle AI Database Administration Associate
1Z0-183 - Oracle AI Database Administration Professional
Also, any word if the Oracle Master certification will be upgraded from 12c to 23/26ai or higher than 19c?