如何在MySQL中使用Python编写自定义触发器、存储引擎和触发器

import <a style=\'color:#f60; text-decoration:underline;\' href="https://www.php.cn/zt/15713.html" target="_blank">mysql</a>.connector
from mysql.connector import errorcode

def create_engine(cursor):
    try:
        # 创建一个新的存储引擎
        cursor.execute("CREATE TABLE my_engine ();")
        cursor.execute("SHOW ENGINES;")
        rows = cursor.fetchall()
        for row in rows:
            if row[0] == \'MY_ENGINE\':
                print(\'Custom engine created successfully.\')
                break
    except mysql.connector.Error as err:
        if err.errno == errorcode.ER_TABLE_EXISTS_ERROR:
            print(\'Table already exists.\')
        else:
            print(\'Error creating engine:\', err.msg)

def drop_engine(cursor):
    try:
        # 删除自定义存储引擎
        cursor.execute("DROP TABLE my_engine;")
        print(\'Custom engine dropped successfully.\')
    except mysql.connector.Error as err:
        print(\'Error dropping engine:\', err.msg)

def main():
    try:
        # 连接到MySQL数据库
        cnx = mysql.connector.connect(user=\'root\', password=\'password\',
                                      host=\'localhost\',
                                      database=\'my_database\')
        cursor = cnx.cursor()

        # 演示创建和移除存储引擎
        create_engine(cursor)
        drop_engine(cursor)

        # 关闭数据库连接
        cnx.close()
    except mysql.connector.Error as err:
        print(\'MySQL Error:\', err)

if __name__ == "__main__":
    main()