MySQL教程:相关的环境变量[图]_MySQL
所有使用mysqlclient客户库与服务器通信的MySQL客户使用下列环境变量:
使用MYSQL_PWD是不安全的。见6.3 与MySQL服务器连接。
“mysql”客户使用MYSQL_HISTFILE环境变量中命名的文件来保存命令行历史,历史文件的缺省值是“$HOME/.mysql_history”,这里$HOME是HOME环境变量的值。
所有MySQL程序取许多不同的选项,然而,每个MySQL程序提供一个--help选项,你可以使用它得到程序不同选项的完整描述。例如,试一试mysql --help。
你能用一个选项文件覆盖所有的标准客户程序的缺省选项。见4.15.4 选择文件。
下表简单地描述MySQL程序:
myisamchk
描述、检查、优化和修复MySQL表的使用程序。因为myisamchk有许多功能,它在其自己的章节中描述。见13 维护MySQL安装。
make_binary_release
制作一个编译MySQL的一个二进制的版本。这能用FTP传送到在ftp.tcx.se网站的“/pub/mysql/Incoming”以方便其它MySQL用户。
msql2mysql
一个外壳脚本,转换mSQL程序到MySQL。它不能处理所有的情况,但是当转换时,它给出一个好起点。
mysql
mysql是一个简单的SQL外壳(具有GNU readline 能力),它支持交互式和非交互式使用。当交互地使用时,查询结果以ASCII表的格式被表示。当非交互地使用时(例如,作为一个过滤器),结果是以定位符分隔的格式表示。(输出格式可以使用命令行选项改变)你可以简单地象这样运行脚本:
shell> mysql database output.tab
如果你在客户中由于内存不足造成问题,使用--quick选项!这迫使mysql使用mysql_use_result()而非mysql_store_result()来检索结果集合。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Solution: 1. Check the eMule settings to make sure you have entered the correct server address and port number; 2. Check the network connection, make sure the computer is connected to the Internet, and reset the router; 3. Check whether the server is online. If your settings are If there is no problem with the network connection, you need to check whether the server is online; 4. Update the eMule version, visit the eMule official website, and download the latest version of the eMule software; 5. Seek help.

As a LINUX user, we often need to install various software and servers on CentOS. This article will introduce in detail how to install fuse and set up a server on CentOS to help you complete the related operations smoothly. CentOS installation fuseFuse is a user space file system framework that allows unprivileged users to access and operate the file system through a customized file system. Installing fuse on CentOS is very simple, just follow the following steps: 1. Open the terminal and Log in as root user. 2. Use the following command to install the fuse package: ```yuminstallfuse3. Confirm the prompts during the installation process and enter `y` to continue. 4. Installation completed

What should I do if the RPC server is unavailable and cannot be accessed on the desktop? In recent years, computers and the Internet have penetrated into every corner of our lives. As a technology for centralized computing and resource sharing, Remote Procedure Call (RPC) plays a vital role in network communication. However, sometimes we may encounter a situation where the RPC server is unavailable, resulting in the inability to enter the desktop. This article will describe some of the possible causes of this problem and provide solutions. First, we need to understand why the RPC server is unavailable. RPC server is a

In network data transmission, IP proxy servers play an important role, helping users hide their real IP addresses, protect privacy, and improve access speeds. In this article, we will introduce the best practice guide on how to build an IP proxy server with PHP and provide specific code examples. What is an IP proxy server? An IP proxy server is an intermediate server located between the user and the target server. It acts as a transfer station between the user and the target server, forwarding the user's requests and responses. By using an IP proxy server

The role of a DHCP relay is to forward received DHCP packets to another DHCP server on the network, even if the two servers are on different subnets. By using a DHCP relay, you can deploy a centralized DHCP server in the network center and use it to dynamically assign IP addresses to all network subnets/VLANs. Dnsmasq is a commonly used DNS and DHCP protocol server that can be configured as a DHCP relay server to help manage dynamic host configurations in the network. In this article, we will show you how to configure dnsmasq as a DHCP relay server. Content Topics: Network Topology Configuring Static IP Addresses on a DHCP Relay D on a Centralized DHCP Server

The steps to start the TFTP server include selecting the TFTP server software, downloading and installing the software, configuring the TFTP server, and starting and testing the server. Detailed introduction: 1. When choosing TFTP server software, you first need to choose the TFTP server software that suits your needs. Currently, there are many TFTP server software to choose from, such as Tftpd32, PumpKIN, tftp-hpa, etc., which all provide simple and easy-to-use functions. interface and configuration options; 2. Download and install TFTP server software, etc.

Methods to view server status include command line tools, graphical interface tools, monitoring tools, log files, and remote management tools. Detailed introduction: 1. Use command line tools. On Linux or Unix servers, you can use command line tools to view the status of the server; 2. Use graphical interface tools. For server operating systems with graphical interfaces, you can use the graphics provided by the system. Use interface tools to view server status; 3. Use monitoring tools. You can use special monitoring tools to monitor server status in real time, etc.

What should I do if I can’t enter the game when the epic server is offline? This problem must have been encountered by many friends. When this prompt appears, the genuine game cannot be started. This problem is usually caused by interference from the network and security software. So how should it be solved? The editor of this issue will explain I would like to share the solution with you, I hope today’s software tutorial can help you solve the problem. What to do if the epic server cannot enter the game when it is offline: 1. It may be interfered by security software. Close the game platform and security software and then restart. 2. The second is that the network fluctuates too much. Try restarting the router to see if it works. If the conditions are OK, you can try to use the 5g mobile network to operate. 3. Then there may be more
