What information will be returned after data is inserted into MySQL?

After data is inserted into MySQL, a message will be returned, which is the result of the insertion operation. Generally, if the insertion operation is successful, an automatically generated unique identifier (such as a self-increasing primary key) will be returned. If the insertion operation fails, an error message will be returned. In MySQL, you can insert data by executing an INSERT statement and obtain the results of the insert operation through the MySQL driver of the programming language.

The following is a specific code example that demonstrates how to use Python to connect to a MySQL database and insert data, and obtain the results of the insertion operation:

import mysql.connector

# 连接MySQL数据库
connection = mysql.connector.connect(
    host="localhost",
    user="root",
    password="password",
    database="mydatabase"
)

cursor = connection.cursor()

# 定义要插入的数据
data = ("John", "Doe", "john.doe@example.com")

# 执行插入操作
try:
    cursor.execute("INSERT INTO users (first_name, last_name, email) VALUES (%s, %s, %s)", data)
    connection.commit()
    print("数据插入成功")
    print("插入的数据ID为:", cursor.lastrowid)  # 获取自动生成的唯一标识符

except mysql.connector.Error as error:
    print("数据插入失败: {}".format(error))

# 关闭数据库连接
connection.close()

In the above code example, the connection is made first MySQL database then executes an INSERT statement to insert data into the table named "users". If the insertion is successful, the message "Data Insertion Successful" will be printed out, and the unique identifier of the inserted data will be obtained through cursor.lastrowid. If the insertion fails, an error message is captured and printed. Finally the database connection is closed.

Through the above code example, we can see that after data is inserted into MySQL, the result information of the insertion operation can be easily obtained through the MySQL driver, thereby better processing the data insertion operation.

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