在SQLite SELECT语句中使用Python正则表达式代码

import sqlite3

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

# 创建一个表
cursor.execute('''CREATE TABLE IF NOT EXISTS users
                  (id INTEGER PRIMARY KEY AUTOINCREMENT,
                   name TEXT,
                   email TEXT)''')

# 插入一些示例数据
cursor.execute("INSERT INTO users (name, email) VALUES ('Alice', 'alice@example.com')")
cursor.execute("INSERT INTO users (name, email) VALUES ('Bob', 'bob@example.com')")
cursor.execute("INSERT INTO users (name, email) VALUES ('Charlie', 'charlie@example.com')")
cursor.execute("INSERT INTO users (name, email) VALUES ('David', 'david@example.com')")

# 使用正则表达式查询符合条件的数据
pattern = r'^[A-D]'
cursor.execute("SELECT * FROM users WHERE name REGEXP ?", (pattern,))

# 获取查询结果
result = cursor.fetchall()
for row in result:
    print(row)

# 关闭数据库连接
conn.close()