|
10 | 10 | --- | ---
|
11 | 11 |
|
12 | 12 | ###### Return and state as 0
|
13 |
| -[# 1142. User Activity for the Past 30 Days II.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Customers%20or%20Users/%23%201142.%20User%20Activity%20for%20the%20Past%2030%20Days%20II.sql) | [# 1241. Number of Comments per Post.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Social%20Media%20and%20Posts/%23%201241.%20Number%20of%20Comments%20per%20Post.sql) |
| 13 | +[# 1142. User Activity for the Past 30 Days II.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Customers%20or%20Users/%23%201142.%20User%20Activity%20for%20the%20Past%2030%20Days%20II.sql) | [**# 1322. Ads Performance.sql**](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Marketing%20and%20Ecommerce/%23%201322.%20Ads%20Performance.sql) |
14 | 14 | --- | ---
|
15 |
| -[**# 1322. Ads Performance.sql**](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Marketing%20and%20Ecommerce/%23%201322.%20Ads%20Performance.sql) | [**# 1407. Top Travellers.sql**](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Customers%20or%20Users/%23%201407.%20Top%20Travellers.sql) |
| 15 | + [# 1241. Number of Comments per Post.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Social%20Media%20and%20Posts/%23%201241.%20Number%20of%20Comments%20per%20Post.sql) | [**# 1407. Top Travellers.sql**](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Customers%20or%20Users/%23%201407.%20Top%20Travellers.sql) |
16 | 16 |
|
17 | 17 | ###### Return the related column value
|
18 | 18 | [# 1350. Students With Invalid Departments.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Schools%20and%20Organizations/%23%201350.%20Students%20With%20Invalid%20Departments.sql)| [# 607. Sales Person.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leet
10000
code-Problems/blob/master/Order%20and%20Deliver/%23%20607.%20Sales%20Person.sql)
|
|
23 | 23 |
|
24 | 24 | ## Aggregate
|
25 | 25 |
|
26 |
| -###### Most Frequently |
27 |
| -[# 1596. The Most Frequently Ordered Products.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Order%20and%20Deliver/%23%201596.%20The%20Most%20Frequently%20Ordered%20Products.sql)| - |
| 26 | +###### Most/Top |
| 27 | +[# 1596. The Most Frequently Ordered Products.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Order%20and%20Deliver/%23%201596.%20The%20Most%20Frequently%20Ordered%20Products.sql)| [# 1082. Sales Analysis I.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Order%20and%20Deliver/%23%201082.%20Sales%20Analysis%20I.sql) |
28 | 28 | --- | ---
|
| 29 | +[**# 1076. Project Employees II.sql**](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Schools%20and%20Organizations/%23%201076.%20Project%20Employees%20II.sql) | - |
| 30 | + |
| 31 | +[**# 619. Biggest Single Number.sql**] | - |
29 | 32 |
|
30 | 33 | ###### Return result, and result will be compared "more/less than"
|
31 | 34 | [# 1587. Bank Account Summary II.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Customers%20or%20Users/%23%201587.%20Bank%20Account%20Summary%20II.sql)| -
|
32 | 35 | --- | ---
|
33 | 36 |
|
34 | 37 | ###### As a condition, the result will be compared "more/less than"
|
35 |
| -[# 1511. Customer Order Frequency.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Order%20and%20Deliver/%23%201511.%20Customer%20Order%20Frequency.sql)|[# 1327. List the Products Ordered in a Period.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Order%20and%20Deliver/%23%201327.%20List%20the%20Products%20Ordered%20in%20a%20Period.sql) |
| 38 | +[# 1511. Customer Order Frequency.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Order%20and%20Deliver/%23%201511.%20Customer%20Order%20Frequency.sql) | [# 1050. Actors and Directors Who Cooperated.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Others%20/%23%201050.%20Actors%20and%20Directors%20Who%20Cooperated.sql) |
36 | 39 | --- | ---
|
| 40 | + [**# 1327. List the Products Ordered in a Period.sql**](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Order%20and%20Deliver/%23%201327.%20List%20the%20Products%20Ordered%20in%20a%20Period.sql) | - |
| 41 | + |
| 42 | + |
37 | 43 | [**# 1083. Sales Analysis II.sql**](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Order%20and%20Deliver/%23%201083.%20Sales%20Analysis%20II.sql) | -
|
38 | 44 |
|
39 | 45 | ###### return categories from numbers
|
|
64 | 70 | ###### across two or more tables
|
65 | 71 | [**# 1571. Warehouse Manager.sql**](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Order%20and%20Deliver/%23%201571.%20Warehouse%20Manager.sql) | -
|
66 | 72 | --- | ---
|
| 73 | + |
| 74 | + ###### odd number |
| 75 | + [# 620. Not Boring Movies.sql](https://github.com/Qian-Yu-2020/Multiple-Solutions-for-Leetcode-Problems/blob/master/Others%20/%23%20620.%20Not%20Boring%20Movies.sql) | - |
| 76 | + --- | --- |
| 77 | + |
67 | 78 |
|
68 | 79 | ## Date
|
69 | 80 | ###### Find a specific month
|
|
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