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10 recommended articles about roc

黄舟
黄舟Original
2017-06-13 14:46:171084browse

one. Preface PROCEDURE ANALYSE(), which can be used as an auxiliary reference to analyze statements when optimizing the table structure. Using this statement, MySQL helps you analyze your fields and their actual data, and will give you some useful suggestions. [These suggestions will only become useful if there is actual data in the table, because making some big decisions requires data as a basis. ] For example, if you create an INT field as your primary key, but there is not much data, then PROCEDURE ANALYSE() will recommend that you change the type of this field to MEDIUMINT. Or you're using a VARCHAR field, and since there's not much data, you might get a message asking you to change it to ENUM suggestions. These suggestions are all possible because there is not enough data, so the decision-making is not accurate enough. When we design a table, we sometimes always think about what type to use for a certain field. A novice-level PHPer will have considerable experience and can type it out directly. In fact, we can also use procedure analyze(); analysis during later tuning.

1. About Analysis Recommended 10 articles

10 recommended articles about roc

## Introduction: 1. Preface PROCEDURE ANALYSE(), which can be used as an auxiliary reference to analyze statements when optimizing the table structure. Using this statement, MySQL helps you analyze your fields and their actual data, and will give you some useful suggestions. [These suggestions will only become useful if there is actual data in the table, because making some big decisions requires data as a basis. 】 For example, if you create an INT field as your primary key, but there is not much data, then PROCEDURE ANALYSE() will recommend that you put this...

2. Example introduction to analysis statements

10 recommended articles about roc

Introduction: 1. Preface PROCEDURE ANALYSE(), which can be used as an auxiliary reference to analyze statements when optimizing the table structure. Using this statement, MySQL helps you analyze your fields and their actual data, and will give you some useful suggestions. [These suggestions will only become useful if there is actual data in the table, because making some big decisions requires data as a basis. 】 For example, if you create an INT field as your primary key, but there is not much data, then PROCEDURE ANALYSE() will suggest that you put this...

3. Recommended articles about Procedure_Analyse

10 recommended articles about roc

##Introduction: 1. Preface PROCEDURE ANALYSE(), which can be used as an auxiliary reference to analyze statements when optimizing the table structure. Using this statement, MySQL helps you analyze your fields and their actual data, and will give you some useful suggestions. [These suggestions will only become useful if there is actual data in the table, because making some big decisions requires data as a basis. 】 For example, if you create an INT field as your primary key, but there is not much data, then PROCEDURE ANALYSE() will suggest that you put this...

4.

sizeof recommends 10 articles

10 recommended articles about roc#Introduction: 1. Introduction    ;     In the previous article, we created a window from scratch. One of the most important steps is to register the window class, as shown in the following code: //Register window class BOOL Register(LPSTR lpClassName, WNDPROC wndProc){    WNDCLASSEX ...

5.

A summary of examples of php dynamic pages

Introduction: (php mascot-elephant) What is php? PHP (foreign name: PHP: Hypertext Preprocessor, Chinese name: "Hypertext Preprocessor") is a general open source scripting language. The syntax absorbs the characteristics of C language, Java and Perl, which is easy to learn and widely used. It is mainly suitable for the field of Web development. PHP's unique syntax mixes C, Java, Perl, and PHP's own syntax. It can execute dynamic web pages faster than CGI or Perl. Dynamic pages and other programming made with PHP...

6. Summary of what you need to pay attention to about Nginx

10 recommended articles about roc

Introduction: nginx parameter tuning worker_processes 3; //The number of cpu cores is -1, the effect is better when used #worker_processes 4;#worker_cpu_affinity 0001 0010 0100 1000 ;#error_log  logs/error.log;#error_log  logs/error.log  notice;#error_log...

7. What is about php 10 articles recommended

10 recommended articles about roc

##Introduction: (php mascot-elephant) What is php? PHP (foreign name: PHP: Hypertext Preprocessor, Chinese name: "Hypertext Preprocessor") is a general open source scripting language. The syntax absorbs the characteristics of C language, Java and Perl, which is easy to learn and widely used. It is mainly suitable for the field of Web development. PHP's unique syntax mixes C, Java, Perl, and PHP's own syntax. It can execute dynamic web pages faster than CGI or Perl. Dynamic pages made with PHP and other programming...

8. Summary of courses on AJAX

10 recommended articles about roc

##Introduction: Commonly used abbreviations   Ajax: Asynchronous Javascript   XML (Asynchronous JavaScript   Unit (Central Processing Unit)    CSS: Cascading Stylesh...

9.

Detailed introduction to abbreviations

10 recommended articles about roc

Introduction: Commonly used abbreviations  Ajax: Asynchronous JavaScript XML (Asynchronous JavaScript XML) ;  CPU: Central Processing Unit    CSS: Cascading Stylesh...

10.

About Father and Son Recommended articles about process

10 recommended articles about roc

Introduction: multiprocessing python multi-process module, therefore, Processing is also the darling of multi-process . But the issues discussed today seem to attract our attention and go directly to the code: from multiprocessing import process, Locker_file = error1.log e. ..

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