Resetting Your Oracle User Password with SQL Developer on OSX

This post started as a shameless copy of Jeff Smiths Resetting Your Oracle User Password with SQL Developer - but it ended in a trilogy about OSX, Oracle and SQLDeveloper.
In my first two posts I made myself comfortable with Oracle instant client on my MacBook. Now I want to use it for something more serious, like changing passwords.

Even with all the modifications from previous post SQLDeveloper still does not show the Reset Password... option. The reason: it just don't know about the library correctly.

First the PATH as shown in previous post is not set in an (more...)

setting environment variables for sqlplus on OSX

In my previous post I showed how to create an universal binary for Oracle instant client so I don't need to care about 32/64 bit anymore.

Now I try to show how to set some environment variables so I only need to enter sqlplus and can start my work without preparing anything first.

I know I could do this in my local .profile, but I was looking for a more centralized way to provide them, maybe on a shared desktop where basic applications are installed just once.

This is all about OSX Mountain Lion - I'm working on 10. (more...)

Oracle client universal binaries for OSX

Recently Oracle announced a new Oracle Instant Client for OSX. As always there is a 32-bit and a 64-bit version available.
I was curious if they can be merged together to an universal binary. The short answer: yes, they can.

It all starts with downloading the instant client zips for 32 and 64 binary. I loaded basic and sqlplus and unzipped them into 2 directories instantclient_11_2_32 and instantclient_11_2_64. I also created a target directory instantclient_11_2.

Then the simple script
for i in `ls instantclient_11_2_32`
do
lipo -create ~/instantclient_11_2_{32,64}/$i -output ~/instantclient_11_2/$i || cp ~/instantclient_11_2_64/$i ~/instantclient_11_2/$i
done


did the work with this (more...)

about traveling

At the moment I am trying to travel to Edinburgh for a week of Exadata Prove of Concept.
The basic idea was to leave Vienna on sunday evening and arrive in Edinburgh on sunday night.
As I tried to do an online checkin on Saturday evening - I discovered the flights where shifted to monday evening. - That was not my initial plan as one day missing on a 5 days PoC is not so (more...)

side channel attack on ORA-00942

Oracle Databases has a powerful set of grants and permissions. One of the easy philosophies behind it is just to hide anything a user is not allowed to see. Technically this leads to an error message
ORA-00942: table or view does not exist.
More precisely it should give a text like table or view does not exist or you are not allowed to access it.
For an ordinary user/schema separation there might be no big difference: If user A can not read table B.TAB it's of no value for user A whether the object does not exist or is just not (more...)