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13/08/2013

The Data Loading Performance Guide

Today I found a document that provides fundamentally knowledge about Data Loading Performance.


1. One of the ways to tune performance is 'Minimally Logged Operations', the document clearly described about this:

Minimally logged operations are available only if your database is in bulk-logged or simple recovery mode. (so we have to change the recovery model configuration of database to bulk-logged or simple)


2. The second knowledge I have learnt from this document is term 'bulk load', it means many method to load data quickly into SQL Server. They are:


  • Integration Services Data Destinations – The method for performing bulk load from the Integration Services ETL tool.
  • BCP – The command line utility for performing bulk load.
  • BULK INSERT – The method for performing bulk load in Transact-SQL
  • INSERT ... SELECT – The method for performing bulk load in process with SQL Server from local queries or any OLE DB source. This method is only ailable as a minimally logged operation in SQL Server 2008.
  • SELECT INTO – The method for creating a new table containing the results of a query; utilizes bulk load optimizations.

You can refer the full informationt: http://msdn.microsoft.com/en-us/library/dd425070.aspx

A different document: http://technet.microsoft.com/en-us/library/cc966529.aspx

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