How to improve performance when retreving millions of records from Sqlserver table?

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SQL-Server-2008R2

Hi,

I have one table named abc and there is milion rows.

when i Select million records from table in Sqlserver2008R2.

How to improve performance for select query? If anybody knows this Please intimate me.

Thanks in advance

Regards
Santhoshkumar

Posted 19-Jan-14 23:35pm

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Kornfeld Eliyahu Peter 20-Jan-14 5:48am

There are some best practices like proper field types, indexing, but it's hard to say anything sure without seeing your select statement...

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thatraja · Answer 1 · 2014-01-20T00:11:00

Why? Millions of records at a time? That's not a good way.

Use paging/filtering while displaying the data.

In database side
SQL Server 2005 Paging Results[^]

In frontend
GridView Multiple Filter AJAX Control[^]
Repeater with Paging and Sorting Features[^]

Check this series for database optimization
Top 10 steps to optimize data access in SQL Server: Part I (use indexing)[^]
Top 10 steps to optimize data access in SQL Server: Part II (Re-factor TSQL and apply best practices)[^]
Top 10 steps to optimize data access in SQL Server: Part III (Apply advanced indexing and denormalization)[^]
Top 10 steps to optimize data access in SQL Server: Part IV (Diagnose database performance problems)[^]
Top 10 steps to optimize data access in SQL Server: Part V (Optimize database files and apply partitioning)[^]

EDIT

Crystal reports
Optimizing Report Performance[^]
Optimizing Crystal Reports[^]
Crystal Reports: 5 Tests for Top Performance[^]
Crystal Reports 2008 -> Performance Improvement Techniques[^]
CrystalReports Performance Tips[^]

Sandeep Singh Shekhawat · Answer 2 · 2014-01-19T23:52:00

Solution 1

I have few points:

1. Define indexes on table
2. Use SET NOCOUNT ON before select statement
3. Use column name in SELECT statement instead of * (astrik).

Posted 19-Jan-14 23:52pm

Sandeep Singh Shekhawat