import sqlite3

# 连接到数据库
try:
    conn = sqlite3.connect('car_info.db')
    cursor = conn.cursor()
    
    # 获取car_owners表的结构
    cursor.execute('PRAGMA table_info(car_owners)')
    rows = cursor.fetchall()
    
    print('car_owners表结构:')
    for row in rows:
        print(row)
    
    # 也检查query_history表的结构，了解两个表的关系
    print('\nquery_history表结构:')
    cursor.execute('PRAGMA table_info(query_history)')
    rows = cursor.fetchall()
    for row in rows:
        print(row)
    
except Exception as e:
    print(f'查询表结构时出错: {e}')
finally:
    if conn:
        conn.close()