Question

There are four data locations covered in the caching video. Three are caches and the other is long-term centralized storage. Which of the four locations require a running warehouse when retrieving data from them?

Select the correct options from the list

A. Metadata Cache
B. Results Cache
C. Warehouse Cache
D. Centralized Storage

Answer 1

The Metadata Cache, Results Cache, and Centralized Storage require a running warehouse when retrieving data from them.

Step-by-step explanation:

The three data locations that require a running warehouse when retrieving data from them are:

1. Metadata Cache: This type of cache stores information about the data and its structure. It requires a running warehouse because it needs to maintain an up-to-date record of the metadata.
2. Results Cache: This cache stores the results of previous queries. It requires a running warehouse so that it can update the cache with new query results.
3. Centralized Storage: This is the long-term storage location for the data. It requires a running warehouse because it is the primary source of data and needs to be accessible for retrieval.

On the other hand, the Warehouse Cache does not require a running warehouse when retrieving data from it. This cache stores temporary data that is frequently accessed and is stored closer to the processing unit to improve performance.