In the process of data collection, cleaning, and transformation, it is often the case that the same batch of data needs to be processed repeatedly. For example, initial requirements may not require year information, but subsequent adjustments may necessitate adding year information. Reteaching data every time can be extremely cumbersome and inefficient. To address this issue, I propose storing or caching raw data retrieved by web crawlers in a specific location, and then retrieving data from this storage location for processing whenever cleaning and transformation are needed. After conducting research on data warehousing and data lakes, I remain unclear on the concepts. What strategies can be employed for efficient storage and management of these data in this scenario?