MySQL软件版本:64位 5.7.12
1、首先配置MySQL的环境变量,在系统环境变量Path的开头添加MySQL的bin目录的路径,以“;”结束,我的路径配置如下:
2、修改MySQL根目录下的my-default.ini文件的内容;主要修改2个属性:basedir和datadir。
basedir:MySQL的根目录;
datadir:数据库数据的保存目录(目录需要手动创建);
需要注意的几点:
目录的斜杠最好用反斜杠,要不需要转义或者加双引号;
datadir的目录必须事先创建好。
3、使用系统管理员启动CMD(命令提示符),并且进入到MySQL的bin目录下(即使配置好了Path也需要执行这一步!);如下图:
4、安装MySQL服务,输入命令:mysqld -install,然后回车;如下提示表示安装成功:
-install命令也可以指定配置文件的地址,如下:mysqld -install MySQL --defaults-file="D:\software\mysql5.7.12\my-default.ini"
5、初始化MySQL服务,输入指令:mysqld --initialize
在执行本指令之前建议现清空一下datadir目录,否则可能会出现初始化失败的错误。
例如:系统提示3534错误
6、启动MySQL服务,输入命令:net start mysql,启动成功如下图:
其他一些常用的指令:
1、停止MySQL服务,输入命令:net stop mysql
2、移除MySQL服务,输入指令:mysqld -remove
以上就是Windows系统下MySQL添加到系统服务方法(mysql解压版)_MySQL的内容,更多相关内容请关注PHP中文网(www.php.cn)!

MySQL functions can be used for data processing and calculation. 1. Basic usage includes string processing, date calculation and mathematical operations. 2. Advanced usage involves combining multiple functions to implement complex operations. 3. Performance optimization requires avoiding the use of functions in the WHERE clause and using GROUPBY and temporary tables.

Efficient methods for batch inserting data in MySQL include: 1. Using INSERTINTO...VALUES syntax, 2. Using LOADDATAINFILE command, 3. Using transaction processing, 4. Adjust batch size, 5. Disable indexing, 6. Using INSERTIGNORE or INSERT...ONDUPLICATEKEYUPDATE, these methods can significantly improve database operation efficiency.

In MySQL, add fields using ALTERTABLEtable_nameADDCOLUMNnew_columnVARCHAR(255)AFTERexisting_column, delete fields using ALTERTABLEtable_nameDROPCOLUMNcolumn_to_drop. When adding fields, you need to specify a location to optimize query performance and data structure; before deleting fields, you need to confirm that the operation is irreversible; modifying table structure using online DDL, backup data, test environment, and low-load time periods is performance optimization and best practice.

Use the EXPLAIN command to analyze the execution plan of MySQL queries. 1. The EXPLAIN command displays the execution plan of the query to help find performance bottlenecks. 2. The execution plan includes fields such as id, select_type, table, type, possible_keys, key, key_len, ref, rows and Extra. 3. According to the execution plan, you can optimize queries by adding indexes, avoiding full table scans, optimizing JOIN operations, and using overlay indexes.

Subqueries can improve the efficiency of MySQL query. 1) Subquery simplifies complex query logic, such as filtering data and calculating aggregated values. 2) MySQL optimizer may convert subqueries to JOIN operations to improve performance. 3) Using EXISTS instead of IN can avoid multiple rows returning errors. 4) Optimization strategies include avoiding related subqueries, using EXISTS, index optimization, and avoiding subquery nesting.

Methods for configuring character sets and collations in MySQL include: 1. Setting the character sets and collations at the server level: SETNAMES'utf8'; SETCHARACTERSETutf8; SETCOLLATION_CONNECTION='utf8_general_ci'; 2. Create a database that uses specific character sets and collations: CREATEDATABASEexample_dbCHARACTERSETutf8COLLATEutf8_general_ci; 3. Specify character sets and collations when creating a table: CREATETABLEexample_table(idINT

To safely and thoroughly uninstall MySQL and clean all residual files, follow the following steps: 1. Stop MySQL service; 2. Uninstall MySQL packages; 3. Clean configuration files and data directories; 4. Verify that the uninstallation is thorough.

Renaming a database in MySQL requires indirect methods. The steps are as follows: 1. Create a new database; 2. Use mysqldump to export the old database; 3. Import the data into the new database; 4. Delete the old database.


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