select candidate_idfrom Candidates

where skillin ('Python','Tableau','PostgreSQL')group by1

havingcount(candidate_id)=3order by1

| 3172|[Second Day Verification](https://leetcode.com/problems/second-day-verification/)|[Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_3172.sql)|| Easy|

| 3150|[Invalid Tweets II](https://leetcode.com/problems/invalid-tweets-ii/)|[Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_3150.sql)|| Easy|

| 3059|[Find All Unique Email Domains](https://leetcode.com/problems/find-all-unique-email-domains/)|[Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_3159.sql)|| Easy|

| 3051|[Find Candidates for Data Scientist Position](https://leetcode.com/problems/find-candidates-for-data-scientist-position/)|[Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_3151.sql)|| Easy|

| 2990|[Loan Types](https://leetcode.com/problems/loan-types/)|[Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_2990.sql)|| Easy|

| 2205|[The Number of Users That Are Eligible for Discount](https://leetcode.com/problems/the-number-of-users-that-are-eligible-for-discount/)|[Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_2205.sql)|| Easy|

| 2082|[The Number of Rich Customers](https://leetcode.com/problems/the-number-of-rich-customers/)|[Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_2082.sql)|| Easy|