Fetching Data very Slow from Oracle 11gR2 Database.

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I am developing a windows application using VB.Net with Framework 4.0 using oracle database and my application fetch data from Oracle 11g database using OleDb Connection and paste these data into excel sheet.

But My Problem is that the Fetching Data from Application take too much time because there are lot of data. I use join with 10 table and each table contain more than 10000 of record.

Please suggest me how I get data fast.

Posted 26-Dec-11 3:14am

Hemant Sarraf

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Rajesh Anuhya 26-Dec-11 9:17am

can you post you query, use Performance tuner to tune your query

3 solutions

Solution 3

Use Microsoft.Practices.EnterpriseLibrary. it is very fast compare with oledb..

Posted 5-Aug-14 6:38am

Shan-Bala

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#realJSOP · Accepted Answer · 2011-12-26T03:24:00

Solution 1

Improving your database design (indexes, keys, relationships, and queries) is pretty much your only hope. Of course you already knew htis, so your question ends up being pointless.

Posted 26-Dec-11 3:24am

#realJSOP

Comments

Hemant Sarraf 26-Dec-11 13:44pm

to generate a single report hits is approx 400.
I want to know is there is any way like any other connection class like SqlCient to fetch data faster.

#realJSOP 27-Dec-11 7:30am

The various .Net classes don't do ANYTHING to improve the database itself. If you don't have the skills necessary to make the database perform at an acceptable level, hire a qualified DBA. I used to work in an Oracle database that contained several hundred tables with several million records, and our queries for ANYTHING took less than 3 seconds to perform. We had an Oracle DBA on staff.

**AmitGajjar** · Accepted Answer · 2011-12-26T05:06:00

Solution 2

Hi,

You can also archive your old data if not required and also try to De-normalize if possible.

thanks
-amit.

Posted 26-Dec-11 5:06am

AmitGajjar