type mysql

MySQL Data Types Note: The following content is applicable to MySQL and later versions. MySQL has many data types. Selecting the correct data type is crucial for achieving high performance. This article is based on some blogs I have seen on the

The following articles mainly describe the actual operations of modifying the alter TABLE structure in MySQL. If you are interested in the actual operations of modifying the alter TABLE structure in MySQL, you can browse the following articles, the

We know that,MySQLDatabases are often combined with PHP to develop powerful applications. So for those who are new to PHP programming, it is necessary to understand some simple MySQL database operations. In this article, we useAlter tableStatement

Last time we introduced:MySQLIn simple operation, alter table changes the table structure. Today we will introduce the MySQL databaseSelectThe process of querying records in a table by statement. Let's take a look at this part. First, let's take a

Installation illustration of MySQL Mysql http://www.jb51.net/softs/2193.htmlThe following is an example of MySQL installation. It is installed using an executable file! Open the mysqlinstallation file mysql-5.0.27-win32.zip, decompress the file, and

Tips for MySQL Introduction Storage Engine MyISAM is the default storage engine of MySQL5.1 and earlier versions. MyISAM provides many features, including full-text indexing, compression, and spatial functions (GIS). However, MyISAM does not support

If you think it is easy to use SQL server (a powerful database platform on Windows) in WINDOWS, in Linux, isn't MySQL (the best combination with PHP) worth mentioning? There are many detours when installing and using MySQL (the best combination with

You can add or delete indexes to or from a table structure in MySQL. The following describes how to modify the table structure in MySQL for your reference. Modify Table Structure in MySQL -- add an index Mysql> alter table tablename change depno int

MySQL data backup and recovery I. data backup methods Description of MySQL parameters: http://www.linuxidc.com/Linux/2014-04/99673.htm Data backup and recovery http://www.linuxidc.com/Linux/2014-04/99674.htm for MySQL management 1. physical backup 1

This article mainly introduces the thinkPHP5.0 framework configuration format, load parsing and reading method, combined with the example form to analyze the common format of thinkPHP5.0 framework configuration, load parsing method, reading method

This is a creation in Article, where the information may have evolved or changed. Preface As container cloud technology matures, microservices architectures are becoming more and more hot. Under the microservices architecture, we decompose the

Mysql sorted by Chinese name bitsCN.com Mysql is sorted by Chinese name SQL code /* Navicat MySQL Data Transfer Source Server: local Source Server Version: 50022 Source Host: localhost: 3306 Source Database: test Target Server Type:

Use bitsCN.com for files in database management Use of files in database management Reading data from text files (import) Common text files: CSV (Comma Separated Values) files, that is, Values Separated by commas The format is as

Tutorial on using files in database management bitsCN.com to read data from text files (import) Common text files: CSV (Comma Separated Values) files, that is, Values Separated by commas The format is as follows:: [Plain] M0001, Li Gang, 1976-01- M0

MySql adds, deletes, modifies the field name, and modifies the field type bitsCN.com MySql adds and deletes fields, modifies field names, and modifies simple syntax of the field type MySql, which is commonly used but not easy to remember. Of course,

MySQL study NOTE _ summary of MySQL character type VARCHAR length knowledge bitsCN.com MySQL study NOTE _ summary of MySQL character type VARCHAR length I. VARCHAR storage and row length restrictions 1. in VARCHAR (N), N refers to the length of

The SQL Date function is important in the use of PHP, so this article will explain it. SQL Date When we work on dates, the hardest task is to ensure that the date you insert is formatted to match the format of the date column in the database. As

MySQL discrete notes-foreign key Mysql foreign key References: about MySQL foreign keys and mysql foreign key association creation MySQL has the same definition of "key" and "index", so foreign keys and primary keys are also an index. The

MySql data type introduction bitsCN.com In the past, when using the database, I did not pay much attention to the selection of the column type. now I have a time to summarize it. This article has referred to the MySql5.1 Reference Manual, MySql must

Summary of MySQL optimization methods Database optimization is a complex task, because it requires a good understanding of system optimization. Although the optimization effect is good if you do not know much about the system or application system,