[ Pdf Oracle SQL High Performance Tuning (Bk/CD) Ñ classical-studies PDF ] by Guy Harrison Â izmirescort.pro
[ Pdf Oracle SQL High Performance Tuning (Bk/CD) Ñ classical-studies PDF ] by Guy Harrison Â Most Oracle Applications Perform Below Their Potential Due To Imperfectly Tuned SQL This Is The First Guide To Oracle Performance That Focuses Primarily On Tuning SQL Code, Rather Than Server Issues Therefore, It Will Be Invaluable To All Oracle Database Developers Who Write Oracle SQL Code Briefly Introduces The Basics And Philosophy Of SQL, And Then Presents A Detailed Overview Of SQL Processing Presents Techniques For Tracing SQL Statement Execution, And Building Indexes To Support Efficient Queries Presents General SQL Tuning Guidelines, Including Techniques For Choosing Execution Plans, Working With Joins, Searching For Nulls And Ranges Introduces Oracle S Parallel Query Facility For Large Volume Queries Outlines Possibilities For PL SQL Tuning, Including Opportunities To Use PL SQL Instead Of Standard SQL Presents Several Real Life Examples Of Poorly Tuned SQL And Shows How They Can Be Improved Then, Briefly Discusses Oracle Server Bottlenecks And Building Efficient Data Models And Application Architectures All Oracle Developers
This book has it all I cannot recommend it highly enough I can only hope that there are similar books available if my work ever shifts to competing databases After 3 years of working with Oracle 7, I ve only amassed about 1% of the practical knowledge and insights that Mr Harrison shares with us in this book Like the title suggests, it teaches Oracle database and SQL statement performance tuning rules, strategies and tips However, it also dips into other valuable topics like principles of indexing, explaining the ever mysterious tkprof output, configuring and tuning the database server itself, and listing other resources to fill the void of Oracle documentation This book and Fuerstein s PL SQL programming book have become standard issue for all
If the idea of slow database response scares you, this is a good place to start You hear tuning a database a lot, but most of it comes too late There are some queries that no disks, no CPU, and no amount of memory can speed up Guy Harrison well named is expert on tuning SQL, and knows how to write about it in a way that makes it easy for you to benefit.
Besides giving you lots examples of how SQL and PL SQL can work well, Guy shows you how to use the tools explain plan, SQL Trace, Tkprof that let you know when you are getting close Actually, he points out that you need to set performance goals early on, and keep testing to see if you are on track if you don t do that early, it may be too late when you realize you need help One of my favorite sections is on tuning joins and sub queries and the accompanying graph showing 197,664 block gets if I do a lot of SQL tuning for Oracle This book is the best book I have read in this subject It is not bias, it is clear, easy to understand, with good practical examples It is written for a truly expert in Oracle SQL tuning Using plain english the author explains a lot of concepts that are fundamental for a successful SQL tuning effort I read the 1st edition than once, and I am reading the 2nd edition for the second time If you already have the first edition, it is worth to purchase the second edition that has been updated and feeded with additional elements If you only have the time to read one book in Oracle SQL tuning, this is your book.