Home Database Mysql Tutorial 【原创】MySQL 5.6 MRR 的存储过程完美诠释

【原创】MySQL 5.6 MRR 的存储过程完美诠释

Jun 07, 2016 pm 05:40 PM
innodb optimization stored procedure

MySQL5.6即将发布,5.6对优化器方面做了诸多优化。我这次主要解释MRR(MULTI-RANGE-READ)。我用存储过程解释了这一过程的改变。大家细心体会去吧。我们针对语句

 MySQL 5.6 即将发布,虚拟主机, 5.6对优化器方面做了诸多优化。 我这次主要解释MRR(MULTI-RANGE-READ)。

 

我用存储过程解释了这一过程的改变。大家细心体会去吧。

 

我们针对语句:

 

  •  

    表结构为:

     

     

     

    首先是MySQL 5.5.

     

     

     

     

     

    下来是MySQL 5.6.

     

     

     

     

    本文出自 “上帝,咱们不见不散!” 博客,香港虚拟主机,请务必保留此出处

    ,美国空间
  • Statement of this Website
    The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

    Hot AI Tools

    Undresser.AI Undress

    Undresser.AI Undress

    AI-powered app for creating realistic nude photos

    AI Clothes Remover

    AI Clothes Remover

    Online AI tool for removing clothes from photos.

    Undress AI Tool

    Undress AI Tool

    Undress images for free

    Clothoff.io

    Clothoff.io

    AI clothes remover

    AI Hentai Generator

    AI Hentai Generator

    Generate AI Hentai for free.

    Hot Article

    R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
    2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
    Hello Kitty Island Adventure: How To Get Giant Seeds
    1 months ago By 尊渡假赌尊渡假赌尊渡假赌
    Two Point Museum: All Exhibits And Where To Find Them
    1 months ago By 尊渡假赌尊渡假赌尊渡假赌

    Hot Tools

    Notepad++7.3.1

    Notepad++7.3.1

    Easy-to-use and free code editor

    SublimeText3 Chinese version

    SublimeText3 Chinese version

    Chinese version, very easy to use

    Zend Studio 13.0.1

    Zend Studio 13.0.1

    Powerful PHP integrated development environment

    Dreamweaver CS6

    Dreamweaver CS6

    Visual web development tools

    SublimeText3 Mac version

    SublimeText3 Mac version

    God-level code editing software (SublimeText3)

    Steps and precautions for implementing batch updates using Oracle stored procedures Steps and precautions for implementing batch updates using Oracle stored procedures Mar 08, 2024 pm 04:12 PM

    Title: Steps and Precautions for Implementing Batch Updates by Oracle Stored Procedures In Oracle database, stored procedures are a set of SQL statements designed to improve database performance, reuse code, and enhance security. Stored procedures can be used to update data in batches. This article will introduce how to use Oracle stored procedures to implement batch updates and provide specific code examples. Step 1: Create a stored procedure First, we need to create a stored procedure to implement batch update operations. The following is how to create a stored procedure

    Oracle stored procedure: Implementation method to determine whether a table exists Oracle stored procedure: Implementation method to determine whether a table exists Mar 08, 2024 pm 09:18 PM

    Stored procedures in Oracle database are a specific type of stored procedures used to execute a series of SQL statements and data operations in the database. In actual database development work, sometimes we need to determine whether a certain table exists in the database, so that we can do some judgment and logical processing in the storage process. Below we will introduce how to implement the method of determining whether a table exists in Oracle database, and provide specific code examples. First, we can use the system table user_tables or all_t

    Discussion on Golang's gc optimization strategy Discussion on Golang's gc optimization strategy Mar 06, 2024 pm 02:39 PM

    Golang's garbage collection (GC) has always been a hot topic among developers. As a fast programming language, Golang's built-in garbage collector can manage memory very well, but as the size of the program increases, some performance problems sometimes occur. This article will explore Golang’s GC optimization strategies and provide some specific code examples. Garbage collection in Golang Golang's garbage collector is based on concurrent mark-sweep (concurrentmark-s

    In-depth interpretation: Why is Laravel as slow as a snail? In-depth interpretation: Why is Laravel as slow as a snail? Mar 07, 2024 am 09:54 AM

    Laravel is a popular PHP development framework, but it is sometimes criticized for being as slow as a snail. What exactly causes Laravel's unsatisfactory speed? This article will provide an in-depth explanation of the reasons why Laravel is as slow as a snail from multiple aspects, and combine it with specific code examples to help readers gain a deeper understanding of this problem. 1. ORM query performance issues In Laravel, ORM (Object Relational Mapping) is a very powerful feature that allows

    C++ program optimization: time complexity reduction techniques C++ program optimization: time complexity reduction techniques Jun 01, 2024 am 11:19 AM

    Time complexity measures the execution time of an algorithm relative to the size of the input. Tips for reducing the time complexity of C++ programs include: choosing appropriate containers (such as vector, list) to optimize data storage and management. Utilize efficient algorithms such as quick sort to reduce computation time. Eliminate multiple operations to reduce double counting. Use conditional branches to avoid unnecessary calculations. Optimize linear search by using faster algorithms such as binary search.

    Performance Optimization Strategy for Oracle Stored Procedure Batch Update Performance Optimization Strategy for Oracle Stored Procedure Batch Update Mar 08, 2024 pm 09:36 PM

    Performance Optimization Strategies for Batch Updates of Oracle Stored Procedures In Oracle database, a stored procedure is a database object used to process data logic or perform specific tasks. It can provide certain performance optimization strategies, especially when updating data in batches. Updating data in batches usually involves a large number of row-level operations. In order to improve performance and efficiency, we can adopt some strategies and techniques to optimize the performance of stored procedures. The following will introduce some performance optimization strategies for batch updates of Oracle stored procedures and provide specific code examples.

    Laravel performance bottleneck revealed: optimization solution revealed! Laravel performance bottleneck revealed: optimization solution revealed! Mar 07, 2024 pm 01:30 PM

    Laravel performance bottleneck revealed: optimization solution revealed! With the development of Internet technology, the performance optimization of websites and applications has become increasingly important. As a popular PHP framework, Laravel may face performance bottlenecks during the development process. This article will explore the performance problems that Laravel applications may encounter, and provide some optimization solutions and specific code examples so that developers can better solve these problems. 1. Database query optimization Database query is one of the common performance bottlenecks in Web applications. exist

    How to optimize the startup items of WIN7 system How to optimize the startup items of WIN7 system Mar 26, 2024 pm 06:20 PM

    1. Press the key combination (win key + R) on the desktop to open the run window, then enter [regedit] and press Enter to confirm. 2. After opening the Registry Editor, we click to expand [HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorer], and then see if there is a Serialize item in the directory. If not, we can right-click Explorer, create a new item, and name it Serialize. 3. Then click Serialize, then right-click the blank space in the right pane, create a new DWORD (32) bit value, and name it Star

    See all articles