SQLPad
Sign In

SQL Coding Questions & Answers

Practice 216 online coding questions and become a data expert.

ALL QUESTIONS

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

Single Table Operation: Lecture 2: COUNT, SUM, AVERAGE, MIN, MAX, GROUP BY, HAVING

ID Title Level FTPR Lecture
5 Monthly revenue easy
24%
2.2
6 Daily revenue in June, 2020 medium
11%
2.2
7 Unique customers count by month easy
19%
2.2
8 Average customer spend by month easy
22%
2.2
9 Number of high spend customers by month medium
4%
2.2
10 Min and max spend easy
13%
2.2
18 Top film category easy
25%
2.2
19 Most productive actor medium
14%
2.2
20 Customer who spent the most medium
15%
2.2
21 Customer who rented the most medium
20%
2.2
23 Average spend per customer in Feb 2020 easy
16%
2.2
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
12%
2.2
84 Click through rate on new year's day search engine medium
10%
2.2
85 Top 4 queries based on click through rate on new year's day search engine hard
6%
2.2
86 Top song in the US spotify easy
19%
2.2
89 Top 5 artists in the US spotify medium
11%
2.2
93 number of sales for each product this month amazon easy
19%
2.2
95 Candidate products for subscription amazon hard
11%
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
29%
2.2
101 Average number of visits per user mobile easy
12%
2.2
106 Mobile vs. web mobile medium
9%
2.2
107 Customer count by platform mobile medium
19%
2.2
112 Top 3 customers amazon easy
30%
2.2
124 Active restaurants by city uber easy
36%
2.2
125 Active restaurants with fewer than 5 trips per city uber easy
14%
2.2
128 Completion rate uber easy
23%
2.2
130 Newly created accounts affirm easy
34%
2.2
132 Top 3 trending countries affirm medium
8%
2.2
133 Small departments robinhood easy
44%
2.2
134 Expensive departments robinhood medium
32%
2.2
143 Customer purchase report afterpay easy
15%
2.2
146 Purchase by platform afterpay easy
13%
2.2
149 fans by video category social easy
30%
2.2
153 Project ROI dropbox easy
18%
2.2
154 Rideshare completion rate lyft easy
22%
2.2
159 Transaction volume from suspended accounts ebay easy
51%
2.2
161 Biggest sales day ebay easy
19%
2.2
163 Average number of orders per brand walmart easy
36%
2.2
164 Orders distribution by brand walmart easy
22%
2.2
167 Top country in video streaming tiktok easy
24%
2.2
169 Same day streams tiktok easy
29%
2.2
170 Top 3 countries by average watch time tiktok easy
10%
2.2
171 Binge watches tiktok easy
19%
2.2
173 User Popularity Percentage social medium
5%
2.2
174 Closed accounts social easy
18%
2.2
181 Users who watched less than one hour of Netflix netflix easy
23%
2.2
183 Top 5 movies by number of watchers netflix easy
33%
2.2
184 Top 5 movies by watch time netflix medium
7%
2.2
185 Top 5 non-English contents by watch time netflix medium
53%
2.2
186 Average comments per question google easy
50%
2.2
187 Comment distribution at Google Forum google easy
50%
2.2
190 Twitter campaign spend report twitter hard
50%
2.2
192 Number of replies to the original tweet by group twitter medium
100%
2.2
193 Difference of replies by testing groups twitter medium
100%
2.2
196 User segments report snap hard - 2.2
197 Students who didn't finish all subjects snap easy - 2.2
198 Average score per subject snap easy - 2.2
202 Monthly active paid subscriptions subscription easy - 2.2
204 AB testing sanity check search engine easy - 2.2
205 Search results recall search engine medium - 2.2
206 Search results recall by testing group search engine medium - 2.2
209 Card issuer customers count visa easy - 2.2
214 D30 retention rate gaming hard - 2.2
215 Monthly active users gaming hard - 2.2
216 Highest spender gaming hard - 2.2

Disclaimer: SQLPad collects questions and their associated data from the internet, but we are not associated with any of the companies or organizations that may be mentioned in these questions. While we strive to provide accurate and up-to-date information, we cannot guarantee the accuracy or completeness of the information provided. Users should exercise their own discretion when using the platform and should not rely solely on the information provided. By using SQLPad, you acknowledge and agree that we are not responsible for any errors or inaccuracies in the information, and that you assume all risks associated with using the platform. You also agree to our terms and conditions.