哪儿可以下载到很多mysql数据;
最近在学mysql,但缺少数据练习,请问下哪儿可以下载到几万以上可以导入到mysql里面的数据;查了好久都没找到合适的,
回复内容:
最近在学mysql,但缺少数据练习,请问下哪儿可以下载到几万以上可以导入到mysql里面的数据;查了好久都没找到合适的,
http://dev.mysql.com/doc/index-other.html
http://www.mysqltutorial.org/mysql-sample-database.aspx
http://www.ntu.edu.sg/home/ehchua/programming/sql/SampleDatabases.html
php 有个 faker 库,可以生成各种类型的杜撰数据,包括,但又不限于各个国家的人名、地址、邮编、电话之类。

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MySQL is suitable for beginners because it is simple to install, powerful and easy to manage data. 1. Simple installation and configuration, suitable for a variety of operating systems. 2. Support basic operations such as creating databases and tables, inserting, querying, updating and deleting data. 3. Provide advanced functions such as JOIN operations and subqueries. 4. Performance can be improved through indexing, query optimization and table partitioning. 5. Support backup, recovery and security measures to ensure data security and consistency.

Navicat itself does not store the database password, and can only retrieve the encrypted password. Solution: 1. Check the password manager; 2. Check Navicat's "Remember Password" function; 3. Reset the database password; 4. Contact the database administrator.

Create a database using Navicat Premium: Connect to the database server and enter the connection parameters. Right-click on the server and select Create Database. Enter the name of the new database and the specified character set and collation. Connect to the new database and create the table in the Object Browser. Right-click on the table and select Insert Data to insert the data.

Navicat for MariaDB cannot view the database password directly because the password is stored in encrypted form. To ensure the database security, there are three ways to reset your password: reset your password through Navicat and set a complex password. View the configuration file (not recommended, high risk). Use system command line tools (not recommended, you need to be proficient in command line tools).

Common reasons why Navicat cannot connect to the database and its solutions: 1. Check the server's running status; 2. Check the connection information; 3. Adjust the firewall settings; 4. Configure remote access; 5. Troubleshoot network problems; 6. Check permissions; 7. Ensure version compatibility; 8. Troubleshoot other possibilities.

Common errors and solutions when connecting to databases: Username or password (Error 1045) Firewall blocks connection (Error 2003) Connection timeout (Error 10060) Unable to use socket connection (Error 1042) SSL connection error (Error 10055) Too many connection attempts result in the host being blocked (Error 1129) Database does not exist (Error 1049) No permission to connect to database (Error 1000)

Steps to perform SQL in Navicat: Connect to the database. Create a SQL Editor window. Write SQL queries or scripts. Click the Run button to execute a query or script. View the results (if the query is executed).

You can create a new MySQL connection in Navicat by following the steps: Open the application and select New Connection (Ctrl N). Select "MySQL" as the connection type. Enter the hostname/IP address, port, username, and password. (Optional) Configure advanced options. Save the connection and enter the connection name.
