SQL Coding Questions & Answers

Master the world of data! Dive into 216 SQL & Python online coding questions and emerge as a data expert!

ALL QUESTIONS

affirm afterpay airbnb amazon apple doordash dropbox ebay google linkedin lyft mobile netflix robinhood roblox search engine snap social spotify tiktok twitter uber visa walmart

Level: easy


ID Title Level FTPR Lecture
1 Top store for movie sales easy
24%
2.1
2 Top 3 movie categories by sales easy
42%
2.1
3 Top 5 shortest movies easy
49%
2.1
4 Staff without a profile image easy
66%
2.1
5 Monthly revenue easy
20%
2.2
7 Unique customers count by month easy
18%
2.2
8 Average customer spend by month easy
20%
2.2
10 Min and max spend easy
11%
2.2
11 Actors' last name easy
21%
2.3
12 Actors' last name ending in 'EN' or 'RY' easy
27%
2.3
16 Staff who live in Woodridge easy
65%
2.1
17 GROUCHO WILLIAMSÔÇÖ actor_id easy
57%
2.1
18 Top film category easy
22%
2.2
22 Average cost per rental transaction easy
42%
2.3
23 Average spend per customer in Feb 2020 easy
16%
2.2
25 Shortest film easy
46%
2.3
26 Second shortest film easy
30%
2.3
27 Film with the largest cast easy
27%
2.3
30 Inactive customers in May easy
22%
2.3
31 Movies that have not been returned easy
26%
2.3
34 Stocked up movies easy
27%
2.3
35 Film length report easy
27%
2.3
36 Actors from film 'AFRICAN EGG' easy
32%
3.1
37 Most popular movie category easy
15%
3.1
39 Most productive actor with inner join easy
22%
3.1
46 Actors and customers whose last name starts with 'A' easy
31%
3.3
47 Actors and customers whose first names end in 'D'. easy
40%
3.3
48 Movie and TV actors easy
38%
3.1
50 Top 5 cities for movie rentals easy
22%
3.1
51 Movie only actor easy
37%
3.2
52 Movies cast by movie only actors easy
11%
3.2
56 Total number of actors easy
30%
3.2
57 Total number of actors (with UNION) easy
37%
3.3
65 Movie revenue percentiles easy
16%
4.3
67 Quartile by number of rentals easy
24%
4.3
70 Cumulative spend easy
13%
4.1
71 Cumulative rentals easy
21%
4.1
76 Districts with the most and least customers easy
12%
4.2
77 Movie revenue percentiles by category easy
18%
4.3
81 How many people searched on new year's day search engine easy
24%
2.2
82 The top search query on new year's day search engine easy
13%
2.2
86 Top song in the US spotify easy
18%
2.2
91 same day friend request acceptance rate spotify easy
13%
3.1
92 Acceptance rate first week of 2021 spotify easy
14%
2.1
93 number of sales for each product this month amazon easy
20%
2.2
96 Overall acceptance rate social easy
13%
2.2
97 Social influencer social easy
10%
2.2
98 Most popular user social easy
33%
2.2
101 Average number of visits per user mobile easy
14%
2.2
104 MAU: Monthly active users mobile easy
20%
3.3
109 Top 3 most popular product categories amazon easy
11%
4.2
112 Top 3 customers amazon easy
30%
2.2
113 Daily cumulative spend amazon easy
11%
4.1
114 Dod revenue change rate amazon easy
15%
4.4
116 Top answers day by device amazon easy
14%
4.2
117 Rolling 7 days total answers amazon easy
35%
4.1
124 Active restaurants by city uber easy
41%
2.2
125 Active restaurants with fewer than 5 trips per city uber easy
16%
2.2
128 Completion rate uber easy
26%
2.2
130 Newly created accounts affirm easy
37%
2.2
133 Small departments robinhood easy
45%
2.2
135 Unlucky employees robinhood easy
16%
4.2
136 Extremely late orders doordash easy
11%
2.3
138 Happy restaurants doordash easy
14%
2.3
142 First order date afterpay easy
40%
4.2
143 Customer purchase report afterpay easy
14%
2.2
146 Purchase by platform afterpay easy
14%
2.2
149 fans by video category social easy
36%
2.2
150 Countries with above average customers social easy
15%
3.1
151 Salary report dropbox easy
18%
2.3
152 Salary analysis dropbox easy
20%
2.1
153 Project ROI dropbox easy
18%
2.2
154 Rideshare completion rate lyft easy
25%
2.2
155 Driver with the highest cancellation rate lyft easy
24%
2.3
159 Transaction volume from suspended accounts ebay easy
58%
2.2
161 Biggest sales day ebay easy
20%
2.2
162 Number of orders per brand walmart easy
41%
3.1
163 Average number of orders per brand walmart easy
32%
2.2
164 Orders distribution by brand walmart easy
28%
2.2
167 Top country in video streaming tiktok easy
28%
2.2
169 Same day streams tiktok easy
34%
2.2
170 Top 3 countries by average watch time tiktok easy
11%
2.2
171 Binge watches tiktok easy
19%
2.2
174 Closed accounts social easy
23%
2.2
175 Employees' email account amazon easy
14%
2.1
176 Employees' annual bonus amazon easy
12%
2.3
181 Users who watched less than one hour of Netflix netflix easy
19%
2.2
183 Top 5 movies by number of watchers netflix easy
46%
2.2
186 Average comments per question google easy
10%
2.2
187 Comment distribution at Google Forum google easy
17%
2.2
194 Daily active users report for new market snap easy
20%
3.2
197 Students who didn't finish all subjects snap easy
25%
2.2
198 Average score per subject snap easy
50%
2.2
203 Top product by country by month apple easy
100%
4.2
204 AB testing sanity check apple easy
50%
2.2
209 Card issuer customers count visa easy - 2.2
210 Issuer and merchant report visa easy - 2.1
211 High spenders by issuer visa easy - 2.1
213 Interchange revenue by issuer and merchant category visa easy - 3.2

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