【Mysql】shell运行mysql的sql语句_MySQL
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【Mysql】shell运行mysql的sql语句
shell本身是一种脚本语言,所以不能像java一样通过api去连接数据库。shell还是要借助mysql本身的一些运行脚本才能去执行sql语句。说到这很明白了,首先必须在机器上安装mysql。
可以通过mysql/bin/mysql这个脚本来运行sql语句,格式是mysql -hhost -Pport -uusername -ppassword database -e"sql",下面是shell的代码
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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.

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.

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.

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.

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.

Navicat steps to write SQL statements: Connect to the database to create a new query window. Write SQL statements to execute query and save query examples SQL statements: SELECT * FROM table_name;INSERT INTO table_name (column1, column2) VALUES (value1, value2);UPDATE table_name SET column1 = value1 WHERE column2 = value2;DELETE FROM table_name WHERE column1 =

The SQL INSERT statement is used to insert data into a table. The steps include: specify the target table to list the columns to be inserted. Specify the value to be inserted (the order of values must correspond to the column name)

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).
