oracle sql tuning pdf free download

... to SQLTXPLAIN Welcome to the world of fast Oracle SQL tuning with SQLTXPLAIN, or SQLT as it is typically called. Never heard of SQLT? You’re not alone. I’d never heard of it before I joined ORACLE, ... following SQL (this is going to be the statement we will tune): SQL > select count(*) from dba_objects; 3. Then get the SQL_ ID value from the following SQL SQL > select sql_ id from v$sqlarea ... genius of SQLT, now spends much of his time improving SQLT code and adapting the SQLT code to new versions of the RDBMS. He also assists Oracle Tuning Performance engineers with SQL tuning through...

Ngày tải lên: 17/03/2014, 19:20

... SELECT sql_ text, executions FROM v$sqlarea WHERE UPPER (sql_ text) LIKE 'DELETE%' OR UPPER (sql_ text) LIKE 'UPDATE%'; The output from this statement will contain SQL statements ... translated into a physical data model. 1.6 Handy SQL Tuning Tips The following sections list some SQL tuning tips that you may find useful both when writing SQL statements and when troubleshooting ... What's New in Oracle9 i It's always exciting to get a new release of Oracle. This section briefly lists the new Oracle9 i features that will assist us in getting SQL performance to...

Ngày tải lên: 25/03/2014, 10:51

... Trang 16 Oracle cơ bản - SQL và PL /SQL Chương 4. CÁC HÀM SQL 4.1.TỔNG QUAN VỀ HÀM SQL 4.1.1. Cấu trúc hàm SQL Hàm SQL là một đặc điểm làm tăng khả năng sử dụng câu lệnh SQL. Hàm SQL có thể ... câu lệnh SQL và PL /SQL. Theo đó người sử dụng có thể tương tác với Oracle Server thông qua hai loại câu lệnh: Câu lệnh SQL Câu lệnh của bản thân chương trình SQL* Plus Trang 11 Oracle ... NULL; 2.2 .SQL* PLUS, CÔNG CỤ TƯƠNG TÁC LỆNH SQL VỚI DATABASE 2.2.1. Câu lệnh tương tác của SQL* Plus Oracle hỗ trợ công cụ SQL* Plus cho phép người sử dụng có thể tương tác trực tiếp với Oracle Server...

Ngày tải lên: 22/12/2013, 11:16

... expressions, and Oracle Expression Filter, the latter two of which are new to Oracle Database 10g. Note: Because regular expressions and Oracle Expression Filter are new to Oracle Database 10g, ... flashback, and parallel queries. The next chapter examines Oracle Expressions, new to Oracle Database 10g. 13.5 Endnotes 1. Oracle Performance Tuning for 9i and 10g (ISBN: 1-55558-305-9) Chap13.fm ... more SQL com- mands that change data. A transaction begins when you execute an SQL command, changing something in the database. As you make further changes to table data, you execute additional SQL...

Ngày tải lên: 24/12/2013, 12:17

... 30 Windows-like functions, 30 See also SQL tools SQL tools, 19–34 iSQL*Plus, 19, 31–34 SQL* Plus Command Line, 19–24 SQL* Plus Windows, 19, 24–28 SQL* Plus Worksheet, 19, 28–31 SQL/ XML standard, 363–72 SQRT ... Gavin Powell (www.oracledbaexpert.com) Oracle Performance Tuning for 9 i and 10 g (ISBN: 1-555-58305-9). Introduction to Oracle 9 i and Beyond: SQL & PL /SQL (ISBN: 1-932- 07224-1). ... carolmdieter@yahoo.com Oracle Technology Network at http://technet .oracle. com or http:// otn .oracle. com is an excellent source for entire Oracle reference docu- mentation sets. Metalink at http://metalink .oracle. com...

Ngày tải lên: 21/01/2014, 18:20

... Tuning 89 5 What Is SQL? 91 6 The Basics of Efficient SQL 115 7 Advanced Concepts of Efficient SQL 167 8 Common-Sense Indexing 209 9 Oracle SQL Optimization and Statistics 255 10 How Oracle SQL ... SQL Tuning 409 Part III: Physical and Configuration Tuning 427 14 Tuning Oracle Database File Structures 429 15 Object Tuning 459 16 Low-Level Physical Tuning 475 17 Hardware Resource Usage Tuning ... Additional details cov- ering Oracle V$ performance views for SQL code tuning are also provided. Chapter 13. Automated SQL Tuning A brief picture of automated SQL code tuning tools, contained within...

Ngày tải lên: 24/01/2014, 04:20

... Worldwide Education Services, Oracle Corporation, 500 Oracle Parkway, Box 659806, RedĆ wood Shores, CA 94065. Oracle Corporation does not warrant that this document is error free. SQL* Plus, PL /SQL, Procedure ... PL /SQL, Procedure Builder, Developer/2000, Oracle7 Server, Oracle Server, Discoverer/2000, and Designer/2000 are trademarks or registered tradeĆ marks of Oracle Corporation. All other products or ... Lee Jennifer Robertson Mark Turangan Copyright E Oracle Corporation, 1992, 1996. All rights reserved. This documentation contains proprietary information of Oracle Corporation; it is provided under a...

Ngày tải lên: 24/01/2014, 10:20

... 11-10 Copyright â Oracle Corporation, 2002. All rights reserved. Creating Stored Outlines SQL& gt; ALTER SESSION 2 SET CREATE_STORED_OUTLINES = train; SQL& gt; SELECT … FROM … ; SQL& gt; SELECT … FROM … ; SQL& gt; ... the use of stored outlines ã Use SQL Trace and TKPROF 11 Copyright â Oracle Corporation, 2002. All rights reserved. SQL Statement Tuning 11-20 Copyright â Oracle Corporation, 2002. All rights ... ordered by gets ã SQL ordered by reads ã SQL ordered by executions ã SQL ordered by parse calls 11-19 Copyright â Oracle Corporation, 2002. All rights reserved. Performance Manager: Top SQL 11-2 Copyright...

Ngày tải lên: 17/02/2014, 14:20

... be complete; the SQL language is too volumi- nous and the Oracle environment is much too complex. Oracle SQL Reference contains about 1,800 pages these days, and even Oracle SQL Quick Reference ... as follows: CHAPTER 2 ■ INTRODUCTION TO SQL, i SQL* PLUS, AND SQL* PLUS 28 Relational Database Systems and Oracle The focus of this book is writing SQL in Oracle, which is a relational database ... book. iSQL*Plus is a special version of SQL* Plus that runs in a browser such as Mozilla or Microsoft Internet Explorer. ■Note Don’t confuse SQL with SQL* Plus. SQL is a language, and SQL* Plus...

Ngày tải lên: 14/03/2014, 19:20

... Programming in PL /SQL Chapter 1. Introduction to PL /SQL Section 1.1. What Is PL /SQL? Section 1.2. The Origins of PL /SQL Section 1.3. So This Is PL /SQL Section 1.4. About PL /SQL Versions Section ... Section 20.5. Testing PL /SQL Programs Section 20.6. Debugging PL /SQL Programs Section 20.7. Tuning PL /SQL Programs Section 20.8. Protecting Stored Code Chapter 21. I/O and PL /SQL Section 21.1. ... Contents | Index For the past ten years, O'Reilly's Oracle PL /SQL Programming has been the bestselling book on PL /SQL, Oracle& apos;s powerful procedural language. Packed with examples...

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