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Full Discussion: Regarding Multi-Threading
Top Forums Programming Regarding Multi-Threading Post 78064 by mbb on Friday 15th of July 2005 05:31:03 AM
Old 07-15-2005
Some more info might help, like which database are you using? e.g. Informix, Oracle, SqlServer etc.

One thing is for sure - if you have a database table it will be quicker to load to if the table did not have any indicies. Usually it is better to drop the indicies, load, then re-create the indicies afterwards.

Other things to consider are referential integrity checks made by the database and constraint checks.

After such a large load, you may have to update statistical information on the table to allow the database optimizer to use the table in the optimal way e.g. 'update statistics for table' in Informix.

Disabling transaction logging on the table or database may increase the performance.

Also some database products have data loader applications to allow for high performance bulk loading of a database.

Ultimately, a large data file will take some time and you will always be bound by the performance of your physical devices.

Hope this helps

MBB
 

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Apache::Session::Store::Informix(3pm)			User Contributed Perl Documentation		     Apache::Session::Store::Informix(3pm)

NAME
Apache::Session::Store::Informix - Store persistent data in a Informix database SYNOPSIS
use Apache::Session::Store::Informix; my $store = new Apache::Session::Store::Informix; $store->insert($ref); $store->update($ref); $store->materialize($ref); $store->remove($ref); DESCRIPTION
Apache::Session::Store::Informix fulfills the storage interface of Apache::Session. Session data is stored in a Informix database. SCHEMA
To use this module, you will need at least these columns in a table called 'sessions': id char(32) # or however long your session IDs are. a_session lvarchar To create this schema, you can execute this command using the sqlplus program: CREATE TABLE sessions ( id char(32) not null primary key, a_session lvarchar ); If you use some other command, ensure that there is a unique index on the table's id column. CONFIGURATION
The module must know what datasource, username, and password to use when connecting to the database. These values can be set using the options hash (see Apache::Session documentation). The options are DataSource, UserName, and Password. Example: tie %hash, 'Apache::Session::Informix', $id, { DataSource => 'dbi:Informix:database', UserName => 'database_user', Password => 'K00l' }; Instead, you may pass in an already-opened DBI handle to your database. tie %hash, 'Apache::Session::Informix', $id, { Handle => $dbh }; The last option is LongReadLen, which specifies the maximum size of the session object. If not supplied, the default maximum size is 8 KB. AUTHOR
This module was written by Mike Langen <mike.langen@tamedia.ch>, based on the original for Oracle. SEE ALSO
Apache::Session, Apache::Session::Store::DBI perl v5.10.1 2010-10-18 Apache::Session::Store::Informix(3pm)
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