By: Charles Hooper

Charles Hooper — Mon, 18 Jan 2010 12:10:11 +0000

In some cases, it depends on the development environment used for the application. In other cases, the application may offer a configuration file to control the array fetch size.

In SQL*PLUS:

SET ARRAYSIZE 100

In PL/SQL:
Use bulk collection (I believe that PL/SQL will do this automatically in recent releases).

When using ADO to connect to the database:
Add FetchSize to the connection string:

dbDatabase.ConnectionString = "Provider=OraOLEDB.Oracle;Data Source=" & strDatabase & ";User ID=" & strUserName & ";Password=" & strPassword & ";ChunkSize=1000;FetchSize=100;"

Or with ADO it may be specified for a single SQL statement after a recordset for the SQL statement has been opened:

snpData.CacheSize = 100

Java and the Oracle Call Interface also have settings to control the array fetch size, but I do not have examples – maybe someone else reading this article will share.

Some applications developed with the Centura / Gupta / Unify / (whatever they call themselves today) SQLWindows allow the array fetch size to be controlled by making a change in the SQL.INI file used by the application:

[oragtwy]
fetchrow=100

By: Anand

Anand — Mon, 18 Jan 2010 07:03:46 +0000

Hi Sir,

Nice to read all the suggestions.can you throw some light on “What about changing the array fetch size (number of rows fetched in a single fetch request)?”

How can we do it?

Regards,
Anand

Comments on: If I Need to Fetch My Rows Faster, Is There Any Way?

By: Charles Hooper

By: Anand