MySQL 5.5 Command Line Client 打不开(闪一下消失)的解决办法
MySQL 5.5 Command Line Client 打不开(闪一下消失)的解决办法
网上搜索到的解决办法:
1、找到mysql安装目录下的bin目录路径。
2、打开cmd,进入到bin目录的路径下,输入mysql -u root -p。
问题分析:
1、查看mysql command line client默认执行的一些参数。方法:开始->所有程序->MySQL->MySQL Server5.5->MySQL5.5 command line client,右键属性。
2、注意看目标的内容。内容比较长,复制出来如下:
"G:\Program Files\MySQL\MySQL Server 5.5\bin\mysql.exe" "--defaults-file=G:\Program Files\MySQL\MySQL Server 5.5\my.ini" "-uroot" "-p"
3、注意"--defaults-file=G:\Program Files\MySQL\MySQL Server 5.5\my.ini" "-uroot" "-p" 中指定的配置文件是 my.ini文件。
这里我们查看一下安装目录,即G:\Program Files\MySQL\MySQL Server 5.5,6个ini文件均不是 my.ini。
4.复制my-small.ini文件,更名为my-ini文件,保存。
5.启动mysql command line client,问题解决。
推荐阅读:
MySQL 5.5 Command Line Client SQL常用语句
Ubuntu下Nginx做负载实现高性能WEB服务器5---MySQL主主同步
生产环境MySQL主主同步主键冲突处理
MySQL主从失败 错误Got fatal error 1236
MySQL主从复制,,单台服务器上实施
Ubuntu下编译安装MySQL双实例并配置主从复制

MySQL uses a GPL license. 1) The GPL license allows the free use, modification and distribution of MySQL, but the modified distribution must comply with GPL. 2) Commercial licenses can avoid public modifications and are suitable for commercial applications that require confidentiality.

The situations when choosing InnoDB instead of MyISAM include: 1) transaction support, 2) high concurrency environment, 3) high data consistency; conversely, the situation when choosing MyISAM includes: 1) mainly read operations, 2) no transaction support is required. InnoDB is suitable for applications that require high data consistency and transaction processing, such as e-commerce platforms, while MyISAM is suitable for read-intensive and transaction-free applications such as blog systems.

In MySQL, the function of foreign keys is to establish the relationship between tables and ensure the consistency and integrity of the data. Foreign keys maintain the effectiveness of data through reference integrity checks and cascading operations. Pay attention to performance optimization and avoid common errors when using them.

There are four main index types in MySQL: B-Tree index, hash index, full-text index and spatial index. 1.B-Tree index is suitable for range query, sorting and grouping, and is suitable for creation on the name column of the employees table. 2. Hash index is suitable for equivalent queries and is suitable for creation on the id column of the hash_table table of the MEMORY storage engine. 3. Full text index is used for text search, suitable for creation on the content column of the articles table. 4. Spatial index is used for geospatial query, suitable for creation on geom columns of locations table.

TocreateanindexinMySQL,usetheCREATEINDEXstatement.1)Forasinglecolumn,use"CREATEINDEXidx_lastnameONemployees(lastname);"2)Foracompositeindex,use"CREATEINDEXidx_nameONemployees(lastname,firstname);"3)Forauniqueindex,use"CREATEU

The main difference between MySQL and SQLite is the design concept and usage scenarios: 1. MySQL is suitable for large applications and enterprise-level solutions, supporting high performance and high concurrency; 2. SQLite is suitable for mobile applications and desktop software, lightweight and easy to embed.

Indexes in MySQL are an ordered structure of one or more columns in a database table, used to speed up data retrieval. 1) Indexes improve query speed by reducing the amount of scanned data. 2) B-Tree index uses a balanced tree structure, which is suitable for range query and sorting. 3) Use CREATEINDEX statements to create indexes, such as CREATEINDEXidx_customer_idONorders(customer_id). 4) Composite indexes can optimize multi-column queries, such as CREATEINDEXidx_customer_orderONorders(customer_id,order_date). 5) Use EXPLAIN to analyze query plans and avoid

Using transactions in MySQL ensures data consistency. 1) Start the transaction through STARTTRANSACTION, and then execute SQL operations and submit it with COMMIT or ROLLBACK. 2) Use SAVEPOINT to set a save point to allow partial rollback. 3) Performance optimization suggestions include shortening transaction time, avoiding large-scale queries and using isolation levels reasonably.


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

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

Hot Article

Hot Tools

WebStorm Mac version
Useful JavaScript development tools

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

SublimeText3 Linux new version
SublimeText3 Linux latest version

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

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