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Terminus pro scribendo electronico ad rationem videndi analyseos globorum cooptatione emissarum 45 minuta est.

Quaestio fundatur in structura 3 tabularum SQL Scribere speciem codicis SQL ad problema solvendum (definitio categoriae ridiculae: video classificationem vel classificationem video creator "ridiculam" l

Quaeritur 1: Output comoedia categoriam dws mensam ad analysim recentis 3 videos auctoris: output 3 videos nuper emissus ab unoquoque creatore user_id, detectio in hebdomada praeterita et numerus similitudinum; user_id, numerus detectio utentium, numerus similium utentium, numerus expositionum, numerus similium

SELECT
	vu.video_user_id AS user_id,
	count( DISTINCT uva.video_id ) AS video_count,
	sum( CASE WHEN uva.action_type = 1 THEN 1 ELSE 0 END ) AS exposure_user_count,
	sum( CASE WHEN uva.action_type = 2 THEN 1 ELSE 0 END ) AS like_user_count,
	sum( CASE WHEN uva.action_type = 1 THEN 1 ELSE 0 END ) AS exposeure_count,
	sum( CASE WHEN uva.action_type = 2 THEN 1 ELSE 0 END ) AS like_count 
FROM
	t_user_video_action_d uva
	JOIN t_video_d v ON uva.video_id = v.video_id
	JOIN t_video_user_d vu ON v.video_user_id = vu.video_user_id 
WHERE
	v.video_type = ‘搞笑’ 
	AND uva.ds >= to_date ( to_char ( SYSDATE,’ YYYYMMDD’ ) - 7,’ YYYYMMDD’ ) 
GROUP BY
	vu.video_user_id 
ORDER BY
	vu.video_user_id;

Quaestio 2: Output numerus effectus: In video creato in 20221103, si descriptio video duos keywords "iocos iocosos" et "loqui ostendo", est "ridicula contenta" "non-contentus ridiculus", et ultima output 20221103 numerus cotidianus ridiculi et non-ridiculi cum duplicatis remotis est.

SELECT
	count( DISTINCT CASE WHEN v.video_description LIKE ‘ %搞笑段子%’ OR v.video_description LIKE ‘ %脱口秀%’ THEN video_id ELSE NULL END ) AS funny_count,
	Count( DISTINCT CASE WHEN v.video_description NOT LIKE ‘ %搞笑段子%’ AND v.video_description NOT LIKE ‘ %脱口秀%’ THEN v.video_id ELSE NULL END ) AS not_funny_count form t_video_d v 
WHERE
	v.ds = to_date ( ‘ 20221103’,’ YYYYMMDD’ );

Quaestio 3: Adice indicationem primae cuiusque diei video expositionis.

SELECT
	uva.ds AS date,
	uva.user_id,
	min( uva.TIMESTAMP ) AS first_exposure_timestamp form t_user_video_action_d uva 
WHERE
	uva.action_type = 1 
GROUP BY
	uva.user_id,
	uva.ds;

Quaeritur 4: Mensam dws ad investigandum retentionis 7-dierum retentionis usorum actuosorum expositorum quovis tempore in praeterito sunt. Mensa 1 Mores usoris in mensa: t_user_video_action_d l Partition: ds (Forma yyyyMMdd) lPrimary key: user_id, video_id lMeaning: aggregatio omnium gerendi utentis in video, quotidie incrementi Field nomine Field significatio generis

SELECT
	uvu.ds AS date,
	uvu.video_user_id AS user_id,
CASE
	
	WHEN count( DISTINCT first_action.video_user_id ) = 0 THEN
	0 ELSE sum( CASE WHEN to_char ( uvu.ds,’ YYYYMMDD’ ) BETWEEN first_action.first_ds AND first_action.first_ds + 6 THEN 1 ELSE 0 END ) 
	END / count( distion first_action.video_user_id ) AS retention_rate Form t_video_user_d uvu
	JOIN ( SELECT user_id, video_id, ds AS first_ds form t_user_video_action_d WHERE action_type = 1 GROUP BY user_id, video_id, ds ORDER BY ds ASC ) first_action ON uvu.video_user_id = first_action.user_id 
GROUP BY
	uvu.video_user_id,
uvu.ds;