add 3172

Author: fishercoder1534

database/_3172.sql

@@ -0,0 +1,7 @@
+-- Write your MySQL query statement below
+-- my completely original solution
+select user_id
+from emails as e
+         join texts as t on e.email_id = t.email_id
+where date_add(date(e.signup_date), Interval 1 Day) = date (t.action_date) and signup_action = 'Verified'
+order by user_id

paginated_contents/database/README.md

@@ -1,5 +1,6 @@
 | #    |      Title     | Solutions                                                                                                             | Video         | Difficulty    | Tag          
 |------|----------------|-----------------------------------------------------------------------------------------------------------------------|---------------|---------------|-------------
+| 3172 |[Second Day Verification](https://leetcode.com/problems/second-day-verification/)| [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_3172.sql)                                || Easy |
 | 1757 |[Recyclable and Low Fat Products](https://leetcode.com/problems/recyclable-and-low-fat-products/)| [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_1757.sql)                                || Easy |
 | 1741 |[Find Total Time Spent by Each Employee](https://leetcode.com/problems/find-total-time-spent-by-each-employee/)| [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_1741.sql)                                || Easy |
 | 1729 |[Find Followers Count](https://leetcode.com/problems/find-followers-count/)| [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_1729.sql)                                || Easy |