如何在python中正确使用LIKE和'%%‘来搜索数据库列表中存储在占位符变量中的部分响应？

import sqlite3

# 连接到数据库
conn = sqlite3.connect('example.db')
cursor = conn.cursor()

# 创建表格
cursor.execute('''CREATE TABLE IF NOT EXISTS users
                  (id INTEGER PRIMARY KEY AUTOINCREMENT,
                   name TEXT,
                   email TEXT)''')

# 插入示例数据
cursor.execute("INSERT INTO users (name, email) VALUES (?, ?)", ('John Doe', 'john@example.com'))
cursor.execute("INSERT INTO users (name, email) VALUES (?, ?)", ('Jane Smith', 'jane@example.com'))
cursor.execute("INSERT INTO users (name, email) VALUES (?, ?)", ('Bob Johnson', 'bob@example.com'))

# 提交更改
conn.commit()

# 搜索包含特定字符的用户
search_term = 'oh'
cursor.execute("SELECT * FROM users WHERE name LIKE ?", ('%' + search_term + '%',))
results = cursor.fetchall()

# 打印搜索结果
for row in results:
    print(row)

# 关闭数据库连接
conn.close()