Oracle DBI driver

I don’t think so. Look at JuliaDatabases · GitHub.

At my too.

I am a little confused if new API for Oracle has to be DBI or DBAPI driver.

DBAPI.jl is new(er) database interface proposal (See: Eric Davies: Towards A Consistent Database Interface on youtube).

But it seems it may need some period to stabilize (or revive) after 1.0 (See:
Small question about Nullable, Missing and DBAPI.jl)

Another suspicios fact is that DBAPI branch in postgresql is unfinished (last commit 2 years ago).