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SQL Coding Questions by Industry

Advertising Ai Ecommerce Education Fintech Food Delivery Forum Gaming Hospitality Human Resource Mobile Music Search Engine Social Subscription Video Streaming

SQL Coding Questions by SQL Operations

Single table operations

SELECT, WHERE, AND, OR, ORDER BY, LIMIT

COUNT, SUM, AVERAGE, MIN, MAX, GROUP BY, HAVING

IN, BETWEEN, LIKE, CASE WHEN

Multi-table operations

INNER JOIN

OUTER JOIN

UNION, UNION ALL

WINDOW functions

AVG, SUM, MAX/MIN

ROW_NUMBER, RANK, DENSE_RANK

NTILE

LAG, LEAD

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Ecommerce SQL Coding Questions

Practice online Ecommerce SQL coding questions, and become an expert in SQL.

ALL QUESTIONS

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ID Title Level FTPR Lecture
93 number of sales for each product this month ecommerce easy
19%
2.2
94 Top 3 products vs. bottom 3 products ecommerce medium
6%
3.3
95 Candidate products for subscription ecommerce hard
11%
2.2
108 Free premium membership ecommerce hard
17%
4.1
109 Top 3 most popular product categories ecommerce easy
11%
4.2
110 Most popular product by category ecommerce medium
11%
4.2
111 Second most popular product ecommerce medium
14%
2.1
112 Top 3 customers ecommerce easy
30%
2.2
113 Daily cumulative spend ecommerce easy
9%
4.1
114 Dod revenue change rate ecommerce easy
13%
4.4
115 Rolling average revenue ecommerce hard
26%
4.1
159 Transaction volume from suspended accounts ecommerce easy
51%
2.2
160 Sellers with no sales by day ecommerce hard
7%
2.3
161 Biggest sales day ecommerce easy
19%
2.2
162 Number of orders per brand ecommerce easy
40%
3.1
163 Average number of orders per brand ecommerce easy
36%
2.2
164 Orders distribution by brand ecommerce easy
22%
2.2
166 Top 10 customers based on spend growth ecommerce medium
13%
4.2
177 Purchases by platform report ecommerce medium
9%
2.3
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