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Merge pull request #8 from MechLizard/izzy_dev_branch
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Added reference SQL queries for all 5 queries.
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@adalysg
adalysg authored Nov 15, 2024
2 parents 207e715 + a1ba52f commit 15c9e20
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329 changes: 329 additions & 0 deletions Backend/SQL Reference queries/queries with best performing video.sql
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/*
-- These sets of queries add a daily best performing video for the query. Used for hovering over a date on the graph.
-- trending_date date is from 14-NOV-17 to 14-JUN-18 AKA 14-11-17 to 14-06-18 in DD-MM-YY
-- publish_date is from 23-JUL-06 to 14-JUN-18 (AKA 23-07-06 to 17-06-18)
-- Input variables start with ":". So, ":country" is a variable that is provided by the user while "country" refers to a table in the database.
-- Set string variables (like country or tag) to '%' by default. It acts as a wildcard in case you don't want to narrow something down. Int variables should be NULL by default.
-- If we are able to display information about videos the video_id should be prepended by https://www.youtube.com/watch?v= so that it becomes a direct link to the video.
-- Ex: Video ID Y6eKxjMA9ek with the link prepended would be: https://www.youtube.com/watch?v=Y6eKxjMA9ek
-- Whenever a tag isn't specified the two lines relating to tags should be removed in code.
-- On average the line that deals with tags results in a query that is 2.6 seconds compared to 0.4 seconds of one without.
-- The lines are specified in the first query:
== Input/output documentation ==
All queries will have these inputs:
Country: String, '%' when none selected.
Category_id: int, Null when not selected.
start_date: string in format of 'DD-MM-YY', default is '14-11-17'.
end_date: string in format of 'DD-MM-YY', default is '14-06-18'.
tag: string, '%' when not entered.
All queries will have these outputs:
trending_date: date, in format of dd-mon-yy (Ex: 14-NOV-17), but this can easily be changed to whatever format is needed.
top_video_id: string
top_video_title: string
top_video_views: int
top_video_likes: int
top_video_dislikes: int
Time & Day Success Query:
Extra input:
start_date: Default should be 14-11-17 in DD-MM-YY
end_date: Default should be 14-06-18 in DD-MM-YY
Extra Output:
published_day_of_week: string, "Monday", "Tuesday", "Wednesday... ect.
Views: Int, total combined views for videos that day.
Disabled videos Query:
Extra Input (Given as a "Choose one" to the user):
comments_disabled: String, "True" or "False". Default is "False"
ratings_disabled: String, "True" or "False". Default is "False"
video_removed: String, "True" or "False". Default is "False"
Extra Output:
disabled_count: A total count of videos that had the selected feature disabled
Events Query:
Extra Input:
event: String, name of event chosen
Extra Output:
event_name: string
event_description: string
event_date: in format of dd-mon-yy (Ex: 14-NOV-17), but this can easily be changed to whatever format is needed.
Popularity Query:
Extra Input:
selection: The value of the radio button for views, likes or dislikes.
Extra Output:
views: int
likes: int
dislikes: int
comment_count: int
Sentiment Query:
Extra Input: none
Extra Output:
- avg_likes: Float
- avg_dislikes: Float
- like_dislike_ratio: Float
*/

-- This query uses publish_date instead of trending_date for searches. Which goes from 23-JUL-06 to 14-JUN-18 (AKA 23-07-06 to 17-06-18)
-- Time & Day Sucess
SELECT unique_video.publish_date, -- This date can be formatted differently as needed. Ex: TO_CHAR(trending_date, 'mm-dd-yy') AS trending_date
unique_video.published_day_of_week,
SUM(unique_video.views) AS views,
SUM(unique_video.likes) AS likes,
SUM(unique_video.dislikes) AS dislikes,
SUM(unique_video.comment_count) AS comment_count,
MAX(best_daily.top_video_id) AS top_video_id,
MAX(best_daily.top_video_title) AS top_video_title,
MAX(best_daily.top_video_views) AS top_video_views,
MAX(best_daily.top_video_likes) AS top_video_likes,
MAX(best_daily.top_video_dislikes) AS top_video_dislikes
FROM ( -- Only gets the relevant version of non-unique video IDs
SELECT publish_date, published_day_of_week, views, likes, dislikes, comment_count,
ROW_NUMBER() OVER (PARTITION BY video.video_id ORDER BY views DESC) AS rn
FROM Video
JOIN tag_association ON video.video_id = tag_association.video_id -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
WHERE (publish_country LIKE :country OR :country = '%')
AND (category_id = :category_id OR :category_id IS NULL)
AND publish_date BETWEEN TO_Date(:start_date, 'DD-MM-YY') -- Default for this query is 23-07-06 (DD-MM-YY)
AND TO_Date(:end_date, 'DD-MM-YY') -- Default for this query is 17-06-18
AND (tag_association.tag_string LIKE :tag OR :tag = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
) unique_video
JOIN ( -- Gets the best performing video for that day.
SELECT publish_date AS top_video_publish_date,
video_id AS top_video_id,
title AS top_video_title,
views AS top_video_views,
likes AS top_video_likes,
dislikes AS top_video_dislikes
FROM (
SELECT publish_date, video.video_id, title, views, likes, dislikes,
ROW_NUMBER() OVER (PARTITION BY publish_date ORDER BY views DESC) AS day_rank
FROM Video
JOIN tag_association ON video.video_id = tag_association.video_id
WHERE (publish_country LIKE :country OR :country = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
AND (category_id = :category_id OR :category_id IS NULL)
AND publish_date BETWEEN TO_Date(:start_date, 'DD-MM-YY') -- Default for this query is 23-07-06 (DD-MM-YY)
AND TO_Date(:end_date, 'DD-MM-YY') -- Default for this query is 17-06-18
AND (tag_association.tag_string LIKE :tag OR :tag = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
)
WHERE day_rank = 1
) best_daily ON unique_video.publish_date = top_video_publish_date -- Combines the two subqueries.
WHERE rn = 1 -- Selects the first unique in each row in video_id
GROUP BY unique_video.publish_date, unique_video.published_day_of_week
ORDER BY unique_video.publish_date;



-- Disabled Videos query
-- At least one check box for comments_disabled, ratings_disabled or video_error_or_removed must be checked for this query to make sense.
SELECT trending_date, -- This date can be formatted differently as needed. Ex: TO_CHAR(trending_date, 'mm-dd-yy') AS trending_date
COUNT(CASE WHEN unique_video.comments_disabled = 'True' THEN 1 END) AS disabled_count, -- When implemented in javascript: Make it so this line only runs If comments_disabled option is selected.
COUNT(CASE WHEN unique_video.ratings_disabled = 'True' THEN 1 END) AS disabled_count, -- When implemented in javascript: Make it so this line only runs If ratings_disabled option is selected.
COUNT(CASE WHEN unique_video.video_error_or_removed = 'True' THEN 1 END) AS disabled_count, -- When implemented in javascript: Make it so this line only runs If video_removed option is selected.
MAX(best_daily.top_video_id) AS top_video_id,
MAX(best_daily.top_video_title) AS top_video_title,
MAX(best_daily.top_video_views) AS top_video_views,
MAX(best_daily.top_video_likes) AS top_video_likes,
MAX(best_daily.top_video_dislikes) AS top_video_dislikes
FROM ( -- Only gets the relevant version of non-unique video IDs
SELECT trending_date,
comments_disabled,
ratings_disabled,
video_error_or_removed,
ROW_NUMBER() OVER (PARTITION BY video.video_id ORDER BY views DESC) AS rn
FROM Video
JOIN tag_association ON video.video_id = tag_association.video_id -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
WHERE (publish_country LIKE :country OR :country = '%')
AND (category_id = :category_id OR :category_id IS NULL)
AND trending_date BETWEEN TO_Date(:start_date, 'DD-MM-YY')
and TO_Date(:end_date, 'DD-MM-YY')
AND (tag_association.tag_string LIKE :tag OR :tag = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
AND (comments_disabled = 'True') -- When implemented in javascript: Make it so this line only runs If comments_disabled option is selected.
AND (ratings_disabled = 'True') -- When implemented in javascript: Make it so this line only runs If ratings_disabled option is selected.
AND (video_error_or_removed = 'True') -- When implemented in javascript: Make it so this line only runs If video_removed option is selected.
) unique_video
JOIN ( -- Gets the best performing video for that day.
SELECT trending_date AS top_video_trending_date,
video_id AS top_video_id,
title AS top_video_title,
views AS top_video_views,
likes AS top_video_likes,
dislikes AS top_video_dislikes
FROM (
SELECT trending_date, video.video_id, title, views, likes, dislikes,
ROW_NUMBER() OVER (PARTITION BY trending_date ORDER BY views DESC) AS day_rank
FROM Video
JOIN tag_association ON video.video_id = tag_association.video_id
WHERE (publish_country LIKE :country OR :country = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
AND (category_id = :category_id OR :category_id IS NULL)
AND trending_date BETWEEN TO_Date(:start_date, 'DD-MM-YY')
AND TO_Date(:end_date, 'DD-MM-YY')
AND (tag_association.tag_string LIKE :tag OR :tag = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
)
WHERE day_rank = 1
) best_daily ON unique_video.trending_date = top_video_trending_date -- Combines the two subqueries.
WHERE rn = 1 -- Selects the first unique in each row in video_id
GROUP BY trending_date
ORDER BY trending_date;



-- Events query
-- This query gives a simple graph of views for the selection
SELECT trending_date, -- This date can be formatted differently as needed. Ex: TO_CHAR(trending_date, 'mm-dd-yy') AS trending_date
SUM(unique_video.views) AS views,
SUM(unique_video.likes) AS likes,
SUM(unique_video.dislikes) AS dislikes,
SUM(unique_video.comment_count) AS comment_count,
MAX(best_daily.top_video_id) AS top_video_id,
MAX(best_daily.top_video_title) AS top_video_title,
MAX(best_daily.top_video_views) AS top_video_views,
MAX(best_daily.top_video_likes) AS top_video_likes,
MAX(best_daily.top_video_dislikes) AS top_video_dislikes
FROM ( -- Only gets the relevant version of non-unique video IDs
SELECT trending_date, views, likes, dislikes, comment_count,
ROW_NUMBER() OVER (PARTITION BY video.video_id ORDER BY views DESC) AS rn
FROM Video
JOIN tag_association ON video.video_id = tag_association.video_id -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
WHERE (publish_country LIKE :country OR :country = '%')
AND (category_id = :category_id OR :category_id IS NULL)
AND trending_date BETWEEN TO_Date(:start_date, 'DD-MM-YY')
and TO_Date(:end_date, 'DD-MM-YY')
AND (tag_association.tag_string LIKE :tag OR :tag = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
) unique_video
JOIN ( -- Gets the best performing video for that day.
SELECT trending_date AS top_video_trending_date,
video_id AS top_video_id,
title AS top_video_title,
views AS top_video_views,
likes AS top_video_likes,
dislikes AS top_video_dislikes
FROM (
SELECT trending_date, video.video_id, title, views, likes, dislikes,
ROW_NUMBER() OVER (PARTITION BY trending_date ORDER BY views DESC) AS day_rank
FROM Video
JOIN tag_association ON video.video_id = tag_association.video_id
WHERE (publish_country LIKE :country OR :country = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
AND (category_id = :category_id OR :category_id IS NULL)
AND trending_date BETWEEN TO_Date(:start_date, 'DD-MM-YY')
AND TO_Date(:end_date, 'DD-MM-YY')
AND (tag_association.tag_string LIKE :tag OR :tag = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
)
WHERE day_rank = 1
) best_daily ON unique_video.trending_date = top_video_trending_date -- Combines the two subqueries.
WHERE rn = 1 -- Selects the first unique in each row in video_id
GROUP BY trending_date
ORDER BY trending_date;

-- Separate query to get the chosen event information
SELECT event_name, event_description, event_date
FROM events
WHERE event_name = :event;




-- Popularity query
-- This query can be extended with if statements in javascript to only return the needed information
-- This query gives a simple graph of views for the selection
SELECT trending_date, -- This date can be formatted differently as needed. Ex: TO_CHAR(trending_date, 'mm-dd-yy') AS trending_date
SUM(unique_video.views) AS views,
SUM(unique_video.likes) AS likes,
SUM(unique_video.dislikes) AS dislikes,
SUM(unique_video.comment_count) AS comment_count,
MAX(best_daily.top_video_id) AS top_video_id,
MAX(best_daily.top_video_title) AS top_video_title,
MAX(best_daily.top_video_views) AS top_video_views,
MAX(best_daily.top_video_likes) AS top_video_likes,
MAX(best_daily.top_video_dislikes) AS top_video_dislikes
FROM ( -- Only gets the relevant version of non-unique video IDs
SELECT trending_date, views, likes, dislikes, comment_count,
ROW_NUMBER() OVER (PARTITION BY video.video_id ORDER BY views DESC) AS rn
FROM Video
JOIN tag_association ON video.video_id = tag_association.video_id -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
WHERE (publish_country LIKE :country OR :country = '%')
AND (category_id = :category_id OR :category_id IS NULL)
AND trending_date BETWEEN TO_Date(:start_date, 'DD-MM-YY')
and TO_Date(:end_date, 'DD-MM-YY')
AND (tag_association.tag_string LIKE :tag OR :tag = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
) unique_video
JOIN ( -- Gets the best performing video for that day.
SELECT trending_date AS top_video_trending_date,
video_id AS top_video_id,
title AS top_video_title,
views AS top_video_views,
likes AS top_video_likes,
dislikes AS top_video_dislikes
FROM (
SELECT trending_date, video.video_id, title, views, likes, dislikes,
ROW_NUMBER() OVER (PARTITION BY trending_date ORDER BY views DESC) AS day_rank
FROM Video
JOIN tag_association ON video.video_id = tag_association.video_id
WHERE (publish_country LIKE :country OR :country = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
AND (category_id = :category_id OR :category_id IS NULL)
AND trending_date BETWEEN TO_Date(:start_date, 'DD-MM-YY')
AND TO_Date(:end_date, 'DD-MM-YY')
AND (tag_association.tag_string LIKE :tag OR :tag = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
)
WHERE day_rank = 1
) best_daily ON unique_video.trending_date = top_video_trending_date -- Combines the two subqueries.
WHERE rn = 1 -- Selects the first unique in each row in video_id
GROUP BY trending_date
ORDER BY trending_date;




-- Sentiment query
SELECT trending_date, -- This date can be formatted differently as needed. Ex: TO_CHAR(trending_date, 'mm-dd-yy') AS trending_date
avg(likes) AS avg_likes, avg(dislikes) AS avg_dislikes,
AVG(CASE
WHEN dislikes = 0 THEN likes / 1
ELSE likes / dislikes
END) AS like_dislike_ratio,
MAX(best_daily.top_video_id) AS top_video_id,
MAX(best_daily.top_video_title) AS top_video_title,
MAX(best_daily.top_video_views) AS top_video_views,
MAX(best_daily.top_video_likes) AS top_video_likes,
MAX(best_daily.top_video_dislikes) AS top_video_dislikes
FROM ( -- Only gets the relevant version of non-unique video IDs
SELECT trending_date, views, likes, dislikes,
ROW_NUMBER() OVER (PARTITION BY video.video_id ORDER BY views DESC) AS rn
FROM Video
JOIN tag_association ON video.video_id = tag_association.video_id -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
WHERE (publish_country LIKE :country OR :country = '%')
AND (category_id = :category_id OR :category_id IS NULL)
AND trending_date BETWEEN TO_Date(:start_date, 'DD-MM-YY')
and TO_Date(:end_date, 'DD-MM-YY')
AND (tag_association.tag_string LIKE :tag OR :tag = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
) unique_video
JOIN ( -- Gets the best performing video for that day.
SELECT trending_date AS top_video_trending_date,
video_id AS top_video_id,
title AS top_video_title,
views AS top_video_views,
likes AS top_video_likes,
dislikes AS top_video_dislikes
FROM (
SELECT trending_date, video.video_id, title, views, likes, dislikes,
ROW_NUMBER() OVER (PARTITION BY trending_date ORDER BY views DESC) AS day_rank
FROM Video
JOIN tag_association ON video.video_id = tag_association.video_id
WHERE (publish_country LIKE :country OR :country = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
AND (category_id = :category_id OR :category_id IS NULL)
AND trending_date BETWEEN TO_Date(:start_date, 'DD-MM-YY')
AND TO_Date(:end_date, 'DD-MM-YY')
AND (tag_association.tag_string LIKE :tag OR :tag = '%') -- When implemented in javascript this line should have an If statement that doesn't run if tag sorting isn't needed.
)
WHERE day_rank = 1
) best_daily ON unique_video.trending_date = top_video_trending_date -- Combines the two subqueries.
WHERE rn = 1 -- Selects the first unique in each row in video_id
GROUP BY trending_date
ORDER BY trending_date;
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