Where the new data's are placed first ?

Question

Hi,
I have created the database of TimesTen as per the steps in
http://download.oracle.com/otn_hosted_doc/timesten/1121/quickstart/html/admin/db_ops_createdb.html
using Data Source Name (DSN )
Placed data in C:\TimesTen\Database
Placed log in D:\TimesTen\Log
Command> connect "dsn=my_ttdb";
Connection successful: DSN=my_ttdb;UID=*******;DataStore=C:\TimesTen\Database\my_ttdb;DatabaseCharacterSet=AL32UTF8;ConnectionChar
=D:\TimesTen\Log;PermSize=700;TempSize=300;TypeMode=0;OracleNetServiceName=orcl_db;
(Default setting AutoCommit=1)
If the tables are created it will be data file that is in C:\TimesTen\Database path
If the data's are populated(inserted/updated) then the log will be in D:\TimesTen\Log path and data's will be C:\TimesTen\Database
Here what ever command which is issued will be logged in D:\TimesTen\Log
Where the new or incoming data's are placed , first in-memory or where ,if it is placing in memory when it will be writing to disk. I couldn't be able to see any data's in memory when the new data is inserted.
I am using bulk command to insert the data
ttBulkCp -i DSN=my_ttdb mytable C:\TimesTen\Database\test.txt
When the data's are inserted it writes the log in the log directory D:\TimesTen\Log and the new log files are generated my_ttdb.logXX ,then what is the difference in general Oracle database and Oracle TimesTen database?
If the logs are going to happen when we use the ttBulkCp command then we can opt for Oracle database and why we need to go for Oracle TimesTen if all the operations are similar.What differs here with normal Oracle database.
Thanks!

Answer 1

Hi,
In the link
http://docs.oracle.com/cd/E21901_01/doc/timesten.1122/e21633/comp.htm#BABHBICB
under Database persistence topic it is said as Databases are created in two ways :
Permanent databases are stored to disk automatically through a procedure called checkpointing. TimesTen automatically performs background checkpoints based on the settings of the connection attributes CkptFrequency and CkptLogVolume. TimesTen also checkpoints the database when the last application disconnects. Applications can also checkpoint a database directly to disk by invoking the ttCkptBlocking built-in procedures
Temporary databases are not stored to disk. A temporary database is automatically destroyed when no applications are connected to it; that is, when the last connection disconnects or when there is a system or application failure. TimesTen removes all disk-based files when the last application disconnects.
A temporary database cannot be backed up or replicated. Temporary databases are never fully checkpointed to disk*, although Checkpoint operations can have significant overhead for permanent databases, depending on database size and activity, but have very little impact for temporary databases. Checkpoints are still necessary to remove transaction log files.
If the Temporary databases are never fully checkpointed to disk then how cum the full data are written to disk
How to Setup a Permanent database
How to Setup a Temporary database (http://docs.oracle.com/cd/E21901_01/doc/timesten.1122/e21633/using.htm#BCGJAJDI)
But the statements are not clear
I need to check how it works on a Permanent database and Temporary database, so it would be helpful if you could provide alternate link how to configure Permanent/Temporary database.
My aim to keep the data in memory (i have not installed Oracle database,only TimesTen has been installed)and replicate the data to another server.For this requirement whether TT will a suitable.using Windows 2003 and 32 bit OS