![SQL Server 2005 SP2
• Enable database forVardecimal Storage Format
• Sp_db_vardecimal_storage_format
• Enabling table forVardecimal storage format
• Sp_tableoption
SQL Server 2008 & R2
• Alter table [TableName] Rebuild With (Data_Compression = CompressionType)
• Alter table [TableName] Rebuild Partition = AllWith (Data_Compression = CompressionType on Partitions (x to n))
• Alter Index [IndexName] on [TableName] RebuildWith (Data_Compression = CompressionType)
• CompressionTypes (Row, Page, None)](https://image.slidesharecdn.com/sqlservercompressionv2-140702205206-phpapp02/85/Sql-server-compression-9-320.jpg)
Sql server compression
- 1. Warwick Rudd Microsoft Certified Master (MCM) – SQL 2008 Principal Consultant Warwick@sqlmastersconsulting.com.au @Warwick_Rudd
- 2. About Me : Warwick Rudd • SQL Server Consultant • MCM – SQL Server 2008 • MCSM – Data Platform • Certified Trainer • Reviewed 4 SQL Server 2012 Beta Exams • Blogger on Simpletalk.com • Presenter at: • User Groups • SQLSaturdays • TechED Australia
- 3. History of Compression SQL Server Database Compression SQL Server Backup Compression Compression EstimationTool
- 4. The reduction in size of data to save space or processing time.
- 5. SQL Server 2005 SP2 • New DataType -VarDecimal SQL Server 2008 • Database & Backup compression SQL Server 2008 R2 • Unicode data compression
- 6. SQL Server 2005 SP2 SQL Server 2008 SQL Server 2008 R2 Edition Enterprise Enterprise Enterprise & Data Center CompressionType VarDecimal Row Level Page Level Unicode
- 7. Benefits Cost Performance Improvements Increased CPU utilisation • More data in memory • Reduce I/O Reduced disk space usage • Database data files • Backup files Reduced time to backup Cost Savings
- 8. SQL Server 2005 SP2 • Sys.sp_estimated_rowsize_reduction_for_vardecimal SQL Server 2008 & R2 • Sp_estimate_data_compression_savings
- 9. SQL Server 2005 SP2 • Enable database forVardecimal Storage Format • Sp_db_vardecimal_storage_format • Enabling table forVardecimal storage format • Sp_tableoption SQL Server 2008 & R2 • Alter table [TableName] Rebuild With (Data_Compression = CompressionType) • Alter table [TableName] Rebuild Partition = AllWith (Data_Compression = CompressionType on Partitions (x to n)) • Alter Index [IndexName] on [TableName] RebuildWith (Data_Compression = CompressionType) • CompressionTypes (Row, Page, None)
- 10. DataTypes not able to be compressed • XML • BLOB • MAX Datatypes Tables not eligible for compression • Maximum row size + compression overhead > 8060 bytes Compression with Partitions • Splitting a range • Merging a range • Switching a range
- 12. SQL Server 2005 SP2 SQL Server 2008 SQL Server 2008 R2 Edition Standard Enterprise Data Center
- 13. Benefits Cost Performance Improvements Increased CPU utilisation • Reduce I/O Reduced disk space usage Reduced time to backup Cost Savings
- 14. Instance Level • SSMS • Transact SQL Defaults can be overridden • Transaction Log Shipping • Maintenance Plans • SSMS • Transact SQL
- 16. Available from Codeplex • http://ssce.codeplex.com/