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SQL Coding Questions & Answers

Practice 216 online coding questions and become a data expert.

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Level: medium

ID Title Level FTPR Lecture
6 Daily revenue in June, 2020 medium
11%
2.2
9 Number of high spend customers by month medium
4%
2.2
13 Actors' first name medium
13%
2.3
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
24 Films with more than 10 actors medium
20%
2.3
28 Film with the second largest cast medium
25%
2.3
29 Second highest spend customer medium
16%
2.3
33 Returning customers medium
8%
2.3
38 Most popular movie category (name and id) medium
18%
3.1
40 Top 2 most rented movie in June 2020 medium
15%
3.1
42 Films that are in stock vs not in stock medium
11%
3.2
43 Customers who rented vs. those who did not medium
9%
3.2
44 In-demand vs not-in-demand movies medium
6%
3.2
49 Top 3 money making movie categories medium
19%
3.1
54 Customer groups by movie rental spend medium
21%
3.2
55 Busy days and slow days medium
11%
3.2
59 Percentage of revenue per movie by category medium
7%
4.1
62 Shortest film by category medium
9%
4.2
66 Movie percentiles by revenue by category medium
19%
4.3
72 Days when they became happy customers medium
10%
4.2
75 Top customer by movie category medium
28%
4.2
78 Quartiles buckets by number of rentals medium
23%
4.3
83 Top search_query in US and UK on new year's day search engine medium
6%
4.2
84 Click through rate on new year's day search engine medium
10%
2.2
87 Top song in the US and UK spotify medium
10%
3.3
88 Top song report spotify medium
23%
4.2
89 Top 5 artists in the US spotify medium
11%
2.2
90 Top artist report spotify medium
22%
4.2
94 Top 3 products vs. bottom 3 products amazon medium
6%
3.3
99 Page recommendation social medium
12%
3.1
100 Advertiser ROI advertising medium
9%
3.2
103 Median and average session duration by day of the week mobile medium
17%
4.3
106 Mobile vs. web mobile medium
9%
2.2
107 Customer count by platform mobile medium
19%
2.2
110 Most popular product by category amazon medium
11%
4.2
111 Second most popular product amazon medium
14%
2.1
123 Top listing in the United States, United Kingdom and Canada airbnb medium
8%
4.2
129 Top 3 and bottom 3 courier uber medium
10%
3.3
132 Top 3 trending countries affirm medium
8%
2.2
134 Expensive departments robinhood medium
32%
2.2
137 Extremely late first orders doordash medium
7%
4.2
139 Poor first delivery experience doordash medium
14%
4.2
144 Third order afterpay medium
10%
4.2
148 Most popular video category social medium
12%
4.2
157 Number of trips before a driver got banned lyft medium
5%
4.2
158 First trip completion rate lyft medium
21%
4.2
166 Top 10 customers based on spend growth walmart medium
13%
4.2
168 Average number of streams in the US tiktok medium
13%
3.2
173 User Popularity Percentage social medium
5%
2.2
177 Purchases by platform report amazon medium
9%
2.3
178 Members who worked at both Microsoft and Google linkedin medium
36%
2.3
179 Members who ever moved from Microsoft to Google linkedin medium
35%
3.1
182 Top 5 content by number of watchers netflix medium
4%
4.1
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
189 Campaign activation date twitter medium
0%
4.1
191 Number of replies by group twitter medium
100%
3.2
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
200 Last week's absent students snap medium - 2.1
201 Top 3 students for each subject snap medium - 4.2
205 Search results recall search engine medium - 2.2
206 Search results recall by testing group search engine medium - 2.2
208 Top 3 urls by testing groups search engine medium - 4.2

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