Home Database Mysql Tutorial Are mysql table names case sensitive?

Are mysql table names case sensitive?

Jan 18, 2022 pm 04:29 PM
mysql

The table name of mysql is case-sensitive in Linux, but the table name of mysql in Windows is not case-sensitive; you can add a line "ower_case_table_names = parameters" in the MySQL configuration file "my.ini [mysqld]" to Set whether to be case sensitive.

Are mysql table names case sensitive?

The operating environment of this tutorial: windows10 system, mysql8.0.22 version, Dell G3 computer.

Is the table name of mysql case-sensitive?

The case rules for MySQL database names, table names, column names, and aliases under Linux are Like this:

  • The database name and table name are strictly case-sensitive;

  • The alias of the table is strictly case-sensitive;

  • Column names and column aliases are case-insensitive in all cases;

  • Variable names are also strictly case-sensitive;

MySQL is not case-sensitive under Windows.

So in order to make the program and database run normally in different operating systems, the best way is to convert them to lowercase during design. However, if the case has been normalized during design, then In the Windows environment, you only need to make changes to the database configuration.

The specific operations are as follows:

Add a line ower_case_table_names = 1# in the MySQL configuration file my.ini [mysqld]

##Parameter explanation:

0: Case-sensitive

1: Case-insensitive

In MySQL, databases and tables correspond to those directories directories and files.

Therefore, the sensitivity of the operating system determines the case sensitivity of database and table naming. This means that database and table names are case-insensitive on Windows but are case-sensitive on most types of Unix systems.

Column names and column aliases are case-insensitive in all cases, and table aliases are case-sensitive. To avoid this problem, it is best to use all lowercase letters plus underscores when defining database naming rules, without using any uppercase letters. Or you can force to start

mysqld with the -O lower_case_table_names=1 parameter (if you use the --defaults-file=...\my.cnf parameter to read the specified configuration file to start mysqld, you need to Add a line lower_case_table_names=1) under the [mysqld] section of the configuration file. In this way, MySQL will automatically convert all table names to lowercase characters during creation and lookup. This option defaults to 1 and is 0 in Unix.

Recommended learning:

mysql video tutorial

The above is the detailed content of Are mysql table names case sensitive?. For more information, please follow other related articles on the PHP Chinese website!

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

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

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)

MySQL's Role: Databases in Web Applications MySQL's Role: Databases in Web Applications Apr 17, 2025 am 12:23 AM

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

How to start mysql by docker How to start mysql by docker Apr 15, 2025 pm 12:09 PM

The process of starting MySQL in Docker consists of the following steps: Pull the MySQL image to create and start the container, set the root user password, and map the port verification connection Create the database and the user grants all permissions to the database

Laravel Introduction Example Laravel Introduction Example Apr 18, 2025 pm 12:45 PM

Laravel is a PHP framework for easy building of web applications. It provides a range of powerful features including: Installation: Install the Laravel CLI globally with Composer and create applications in the project directory. Routing: Define the relationship between the URL and the handler in routes/web.php. View: Create a view in resources/views to render the application's interface. Database Integration: Provides out-of-the-box integration with databases such as MySQL and uses migration to create and modify tables. Model and Controller: The model represents the database entity and the controller processes HTTP requests.

Solve database connection problem: a practical case of using minii/db library Solve database connection problem: a practical case of using minii/db library Apr 18, 2025 am 07:09 AM

I encountered a tricky problem when developing a small application: the need to quickly integrate a lightweight database operation library. After trying multiple libraries, I found that they either have too much functionality or are not very compatible. Eventually, I found minii/db, a simplified version based on Yii2 that solved my problem perfectly.

How to install mysql in centos7 How to install mysql in centos7 Apr 14, 2025 pm 08:30 PM

The key to installing MySQL elegantly is to add the official MySQL repository. The specific steps are as follows: Download the MySQL official GPG key to prevent phishing attacks. Add MySQL repository file: rpm -Uvh https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm Update yum repository cache: yum update installation MySQL: yum install mysql-server startup MySQL service: systemctl start mysqld set up booting

Centos install mysql Centos install mysql Apr 14, 2025 pm 08:09 PM

Installing MySQL on CentOS involves the following steps: Adding the appropriate MySQL yum source. Execute the yum install mysql-server command to install the MySQL server. Use the mysql_secure_installation command to make security settings, such as setting the root user password. Customize the MySQL configuration file as needed. Tune MySQL parameters and optimize databases for performance.

Laravel framework installation method Laravel framework installation method Apr 18, 2025 pm 12:54 PM

Article summary: This article provides detailed step-by-step instructions to guide readers on how to easily install the Laravel framework. Laravel is a powerful PHP framework that speeds up the development process of web applications. This tutorial covers the installation process from system requirements to configuring databases and setting up routing. By following these steps, readers can quickly and efficiently lay a solid foundation for their Laravel project.

MySQL and phpMyAdmin: Core Features and Functions MySQL and phpMyAdmin: Core Features and Functions Apr 22, 2025 am 12:12 AM

MySQL and phpMyAdmin are powerful database management tools. 1) MySQL is used to create databases and tables, and to execute DML and SQL queries. 2) phpMyAdmin provides an intuitive interface for database management, table structure management, data operations and user permission management.

See all articles