Mdt Flashcards
A mobile DBMS
runs on a pervasive device
How many users are automatically created when oracle DB is installed?
2 (SYS and system)
An oracle DB can access _ databases at a time
1
Put these in the correct order
Segment
Datablock
Extent
Datablock Extent Segment (DES)
This file is the brain of the database, and stores information on the state of the databse
The control file
This log contains information about errors and major db events
Oracle Alert Log
PMON is a part of oracle ______
instance
The library cache stores
SQL parsing details
startup open
What does this do?
Allows users to access the database
This type of buffer is a buffer that’s content has been modified
A dirty buffer
What term is used by Oracle to age data out of the database buffer cache?
Least recently used
Under what circumstance does the DBWn process write dirty buffers to the disk?
When a commit occurs
In oracle, what is the minimum number of recommended control files?
2
T/F - An extent can be made up of more than one segment
False
T/F - A tablespace can contain more than 1 datafile
True
A datablock is a logical structure, a tablespace is a physical structure
True
create tablespace test datafile “E:\test\test09.dbf” size 100M;
create tablespace test datafile ‘E:\test\test09.dbf’ size 100M;
Double parenthesis or single?
Single