Answered step by step
Verified Expert Solution
Question
1 Approved Answer
WRITE RELATIONAL ALGEBRA 1-list down the channel id's whose name have been changed twice or more than that. select channel_id,count(*) from channel_log group by channel_id
WRITE RELATIONAL ALGEBRA
1-list down the channel id's whose name have been changed twice or more than that.
select channel_id,count(*) from channel_log group by channel_id having count(*)>=2;
2- which videos have the upload time at 2017?
select title,upload_timestamp from video where upload_timestamp between '2017-01-01' and '2017-12-31';
3- List down the videos watched completely
select a.title from video a inner join visualization b on a.id=b.video_id where b.watched_entire_video='true';
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started