oracle sql tuning books

ObjectiveAfter the analysis of the previous few, in fact, in general has been the first glimpse of the importance of SQL Server statistics, so this article will be sacrificed this artifact.This content will be very long, sit good bench, melon seeds snacks and so on ...No nonsense, go to the chase.Technical preparationThe database version is SQL SERVER2008R2, which is analyzed using Microsoft's previous case

not as good as Oracle ...!!!There are some children's shoes simply think that SQL Server is pediatrics, there is no technical content ... It's very simple.On these points, I don't want to spit out anything, I just want to let those friends who really know SQL Server to prove something to SQL Server.At the end of the a

article has been a bit long ... Let's get here first.About tuning the content is too broad, we put in the future space to introduce, interested can advance attention.Reference documents Microsoft Books Online Read page Refer to the book SQL. server.2005. Technical Insider "series If you have any questions, you can leave a message or private mes

Objective Over the past decade, Oracle has become one of the most professional databases in the world. For IT professionals, it is important to ensure that Oracle's powerful features are used to improve the productivity of their companies. One of the most effective ways to do this is through Oracle tuning. It has a large number of

we write statements, we need to understand and master them so that we can write efficient T-SQL statements.Reference documents Microsoft Books Online logical operators and physical operator references Refer to the book SQL. server.2005. Technical Insider "series ConclusionThis article is a bit long, but the introduction of sub-query content is

too early to die. The understanding of the SQL Server framework mainly comes from this book. Unfortunately, there is no Chinese version. 5. The second book on performance tuning that comes into contact with SQL Server 2008 Kernel Analysis and troubleshooting first focuses on tuning the principles. The book is divided

. server.2005. Technical Insider "series Conclusion This article first to this bar, short, easy to understand, this article mainly introduces the query plan of the joint operators, the next we analyze SQL Server parallel operations, in multicore hyper-threading gathered today, see SQL How server uses parallel operations to maximize the use of existing hardware resources to improve performance, is inte

In 10 Gb, Oracle launched its own auxiliary SQL optimization tool: SQL optimizer (SQL Tuning Advisor: STA), which is a new DBMS_SQLTUNE package. To use the STA, make sure that the optimizer is in CBO mode. However, I think this tool is only suitable for those who do not full

Chapter 2 procedural performance tuning of PL/SQL applications I. Reasons for PL/SQL Performance problems When the execution efficiency of PL/SQL-based applications is low, it is usually caused by poor SQL statements and programming methods, poor understanding of PL/

Oracle SQL Tuning Oracle's SQL tuning is a complex topic, and even a whole book is needed to introduce the nuances of Oracle SQL tuning. Bu

dbms_workload_repository. Create_snapshot;We can also use the Dbms_workload_repository package to complete the baseline, modification of the default settings and so on.ADDM (Automatic Database Diagnostic Monitor AWR)is a consultant system within Oracle that can automate some of the optimization recommendations for the most databases, give recommendations for SQL optimization, index creation, and statistics

SQL Optimization Oracle SQL optimization is a complex topic, and even requires the entire book to introduce the nuances of Oracle SQL optimization. However, there are some basic rules that every Oracle DBA must follow. These rules

Oracle Oracle Expert Tuning Secrets Objective 　　 Over the past decade, Oracle has become one of the most professional databases in the world. For IT professionals, it is important to ensure that Oracle's powerful features are used to improve the productivity of their companies. One of the most effective ways to d

performance, and to control their sum within the value specified by the Sga_target. Once you assign a value to Sga_target (the default is 0, that is, ASMM is not started), the ASMM feature is started automatically.iii. Oracle Memory tuning approachWhen a performance problem arises in the production environment of a project, how do we determine which parameters need to be adjusted? 3.1 Check the library cac

actually specified as the sqlid of the statement) --Generates an AWR report of an SQL statement, runs the script Awrsqrpt.sql Awrsqrpi.sql: Generates a statistical report of the specified SQL statement for the specified DB instance, specifying the snapshot interval; Awrddrpt.sql: Specify two different time periods, generate a statistical comparison report of the two periods; Awrddrpi.sql: Speci

planning Instance Tuning Instance optimization SQL Tuning SQL optimization 1.1.1 Performance PlanningBefore starting on the instance or SQL tuningsections of this guide, make sure you have read part II, "Performance plannin G ". Before you learn the exa

Read Catalogue (1) Select the most efficient table name order (valid only in the rule-based optimizer) (2) connection order in the WHERE clause (3) Avoid using ' * ' in the SELECT clause (4) Reduce the number of accesses to the database (5) Reset the ArraySize parameter in Sql*plus, sql*forms and pro*c to increase the amount of data retrieved per database access, with a recommended value of 200

Label: Read Catalogue (1) Select the most efficient table name order (valid only in the rule-based optimizer) (2) connection order in the WHERE clause (3) Avoid using ' * ' in the SELECT clause (4) Reduce the number of accesses to the database (5) Reset the ArraySize parameter in Sql*plus, sql*forms and pro*c to increase the amount of data retrieved per database access, with a recommended

An outline that is roughly written in the optimization content of the physical design and logical design of the DB, mainly physical design, logical design introduction of the content is not much, the outline of the physical structure design and example optimization of organic combination of the logical structure design and application adjustment together ... Oracle Performance Tuning Guidance outline Desi

can write efficient T-SQL statements.Reference documents Microsoft Books Online logical operators and physical operator references Refer to the book SQL. server.2005. Technical Insider "series ConclusionThis article is a bit long, but the introduction of sub-query content is not very full, follow-up slowly add on, we write a lot of