Tài liệu Apress Troubleshooting Oracle Performance Jun 2008 1590599179 docx

... identification of performance problems. Strangely, Oracle underestimates the importance of such a tool and, consequently, has only marginally improved it since its introduction in Oracle7 . A number ... 10:37:08 2008 Copyright (c) 1982, 2007, Oracle. All rights reserved. Trace file: DBM11106_ora_6334.trc Sort options: prsela exeela fchela Antognini_9179C03.fm Page 81 Tuesday, April...

Ngày tải lên: 24/01/2014, 04:20

Ngày tải lên: 24/01/2014, 01:20

... com- plex mutable joins, which are difficult to tune. The result could be severe performance problems. These types of performance problems are often detected only when applications are placed onto ... hide complexity in code. Views are not evil, views are good, views do not kill performance anymore than SQL kills performance, for all a view is, is a stored SQL query!” The point I am try...

Ngày tải lên: 24/01/2014, 04:20

Ngày tải lên: 25/01/2014, 15:20

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Ngày tải lên: 17/12/2013, 02:15

... SQL Query Performance Tuning 1 The Performance- Tuning Process 2 The Core Process 2 Iterating the Process 4 Performance vs. Price 7 Performance Targets 7 “Good Enough” Tuning 7 Performance ... QUERY PERFORMANCE TUNING 15 Summary In this introductory chapter, you have seen that SQL Server performance tuning is an itera- tive process, consisting of identifying performance...

Ngày tải lên: 17/12/2013, 02:15

... ROADMAP Accelerated SQL Server 2008 Beginning SQL Server 2008 for Developers Pro T-SQL 2008 Programmer’s Guide SQL Server 2008 Transact-SQL Recipes SQL Server Query Performance Tuning Distilled, Second ... please contact Apress directly at 2855 Telegraph Avenue, Suite 600, Berkeley, CA 94705. Phone 510-549-5930, fax 510-549-5939, e-mail info @apress. com, or visit http://www .apre...

Ngày tải lên: 17/12/2013, 02:15

... request. Performance Performance is always a key requirement in a software system. When you implement mes- sage-based applications, you must consider performance. Service Broker provides performance ... SQL Server transaction is committed. Figure 2-10 shows the performance overhead introduced with distributed transactions. Figure 2-10. Performance problems with distributed transactio...

Ngày tải lên: 17/12/2013, 02:15

... standards. Michael Coles THE APRESS ROADMAP Beginning SQL Server 2008 for Developers Beginning XML in C# 2008 Pro SQL Server 2008 XML Pro T-SQL 2008 Programmer’s Guide SQL Server 2008 XML Coles cyan ... is the author of the book Pro T-SQL 2005 Programmer’s Guide (Apress, 2007) and a contributor to Accelerated SQL Server 2008 (Apress, 2008) . xvii 9837ch00FMFINAL.qxd 4/17/08...

Ngày tải lên: 17/12/2013, 02:15

... SQL Server 2008 supports indexing of xml data type columns. Indexing xml columns helps the SQL optimizer significantly improve query performance on XML data stored in the database. The performance ... used to declare parameters for functions and stored procedures. What’s New in SQL Server 2008 XML SQL Server 2008 provides several enhancements over SQL Server 2000 in terms of XML sup...

Ngày tải lên: 17/12/2013, 02:15