channel_user table
channel_id user_id subscribed_datetime
100 1 2020-12-10 10:30:45
100 7 2020-10-10 11:30:45
channel_user table stores the data of the channel_ids and their subscribers' user_ids.
user_likes table
user_id video_id reaction_type reacted_at
1 10 LIKE 2020-12-10 10:30:45
7 10 DISLIKE 2020-10-10 11:30:45
video_genre table
video_id genre_id
10 201
10 202
Get all the distinct user_ids who liked at least one video uploaded by Android Authority Channel (channel__id = 364) but didn't like the video uploaded by Tech savvy channel with video_id = 1005.
Consider reaction_type LIKE as liked
Sort the output in the ascending order of user_id.
Expected Output Format
user_id
...
What are the two extremes for technical architecture design? Which one is
better?
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Under what condition an operation can be executed in parallel?
What is mean by click stream? How it can be used in a web Data Warehouse environment
(a) What is data parallelism explain with example?
(b) Under what condition an operation can be executed in parallel?
You are a manager of Data Warehouse, how you keep the data validate in terms of secure data of validation?
Explain in detail the concept of modeling the Business Data Warehousing (BDW)?
You are a manager of Data Warehouse, how you keep the data validate in terms of secure data of validation?
What are the two extremes for technical architecture design? Which one is better?