[LEET-2879] add 2879

Author: fishercoder1534

paginated_contents/database/README.md

@@ -6,6 +6,7 @@
 | 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/_3051.sql)                                || Easy |
 | 2990 |[Loan Types](https://leetcode.com/problems/loan-types/)| [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_2990.sql)                                || Easy |
+| 2879 |[Display the First Three Rows](https://leetcode.com/problems/display-the-first-three-rows/)| [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_2879.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 |
 | 2072 |[The Winner University](https://leetcode.com/problems/the-winner-university/)| [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_2072.sql)                                || Easy |

python3/2879.py

@@ -0,0 +1,4 @@
+import pandas as pd
+
+def selectFirstRows(employees: pd.DataFrame) -> pd.DataFrame:
+    return employees.head(3)