Topic: Help to be defined what book to read
. I write on PL/SQL two years.
Recently finished reading of the book of Alan Bjuli "It is studied SQL" to renew in storage of knowledge on SQL.
Now I want to take something more profound on ORACLE.
The choice costs between two books:
1. Stephen Fejershtejn "Oracle PL/SQL for professionals".
2. Thomas Kajt and Darl Kun "Oracle for professionals".
Initially thought to take Fejershtejna, but then thought that since I on PL/SQL write 2 years some things of relative coding already from teeth fly away. Another matter that writes Kajt more on architectural singularities of a DB. Kajta can take better to me? As I tend to Kajtu because in 2-3 months certification is planned for level more, and it seems to me that for preparation on certification, Kajt approaches is better.
In general, advise what to take. I already was absolutely tangled.