oracle performance tuning books

, Microseconds_per_second ms_per_sec, pct_of_time pct from Opsg_delta_report where Microseconds_per_second > 0; Monitoring the usage of indexes: With In_plan_objects as(SELECT DISTINCT object_name from V$sql_plan WHERE object_owner = ' SCOTT ')SELECT table_name,Index_name,CaseWhen object_name was NULL then' NO 'ELSE' YES 'END as In_cached_planFrom User_indexesLeft OUTER JOIN in_plan_objectsOn (index_name = object_name);4. Identify the SQL statements that benefit from the binding variab

StepsGeneral performance issues tuning steps:　　Step One : Identify the problemApplication code: In general, the performance problems of many programs are written, so for the module that finds the bottleneck, you should first check the code.　　database configuration: Often causes the entire system to run slowly, some large databases, such as

: Electronics Industry Publishing House Rating: Samsung half CSDN recently advertised the book. Look at the feeling is belong to the kind of "illustrated". One of the characteristics of Taiwanese technical writers ' writing is that they write in a clearer and more readable way. But some of the terms may be quite different from one another. In this book alone, as an introductory book, the quality of the finishing is good. Can see the author's serious and responsible attitude. It can also be see

MySQL performance tuning and Architecture Design-the idea and solution of the High Availability design in Chapter 17th, mysql Tuning Chapter 1 High Availability design ideas and solutions Preface: The database system is the core part of an application system. To ensure the overall availability of the system, the database system cannot have any problems. For an en

range. That doesn't make sense either. For performance testing, we also need to define a time period. For example, it lasts 15 minutes on a certain throughput. Because the system becomes unstable when the load arrives, the system will stabilize after a two-minute time. In addition, it is possible that your system behaves normally in the first few minutes of the load, and then it is unstable and even collapsed. So it takes so long. This value, we

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 tuni