Thank itpub, I passed 023 last week, as my appreciation to everyone, I memorize 4 questions never been seen here.
1. How to prepare meta data to file?
a) use DBMS_TTS package
b) user export_tablespace command
c) alter tablespace ... filename...
d) ...
e) ...
2. sys privileges (choose 3)
a) update
b) excute
c) reference
d) create table
e) alter any index
3. two ways to set NLS ...
a) by installation
b) by setting environment variables
c) setting parameter file
d) when session connect
e) create control file
4.A employee table and a department table, which one can't be done by declaritve constraint
a) assign each employee a department
b) every employee has a unique badge ID, but some of them have none
c) salary this month can't less than last month
d) terminate day must late than start day
e) every employee has a unique employee id
