旧系统升级避坑：车辆管理解决方案迁移中的数据安全与平滑过渡方法

// 数据加密迁移示例
public async Task MigrateVehicleDataWithEncryption(VehicleRecord record)
{
    // 使用AES加密算法加密敏感数据
    var encryptedData = EncryptData(record, EncryptionKey);
    
    // 安全传输到新系统
    await SecureTransferToNewSystem(encryptedData);
    
    // 验证数据完整性
    await VerifyDataIntegrity(record.Id, encryptedData);
}

private byte[] EncryptData(VehicleRecord data, byte[] key)
{
    using var aes = Aes.Create();
    aes.Key = key;
    // 配置加密参数并执行加密
    // ...
}

-- 数据同步验证查询示例
SELECT 
    old_system.vehicle_id,
    old_system.vehicle_status AS old_status,
    new_system.vehicle_status AS new_status,
    CASE WHEN old_system.vehicle_status = new_system.vehicle_status 
         THEN '匹配' ELSE '不匹配' END AS status_match
FROM old_system.vehicles old_system
INNER JOIN new_system.vehicles new_system 
    ON old_system.vehicle_id = new_system.vehicle_id
WHERE old_system.last_updated > DATEADD(day, -1, GETDATE());

// 数据一致性验证脚本示例
async function verifyDataConsistency() {
  const oldSystemData = await fetchOldSystemData();
  const newSystemData = await fetchNewSystemData();
  
  const discrepancies = [];
  
  for (const [key, oldValue] of Object.entries(oldSystemData)) {
    const newValue = newSystemData[key];
    if (!deepEqual(oldValue, newValue)) {
      discrepancies.push({
        field: key,
        oldValue,
        newValue
      });
    }
  }
  
  generateVerificationReport(discrepancies);
}