How have American baby name tastes changed since 1920? Which names have remained popular for over 100 years, and how do those names compare to more recent top baby names? These are considerations for many new parents, but the skills you'll practice while answering these queries are broadly applicable. After all, understanding trends and popularity is important for many businesses, too!
You'll be working with data provided by the United States Social Security Administration, which lists first names along with the number and sex of babies they were given to in each year. For processing speed purposes, the dataset is limited to first names which were given to over 5,000 American babies in a given year. The data spans 101 years, from 1920 through 2020.
The Data
baby_names
baby_names| column | type | description |
|---|---|---|
year | int | year |
first_name | varchar | first name |
sex | varchar | sex of babies given first_name |
num | int | number of babies of sex given first_name in that year |
-- Run this code to view the data in baby_names
SELECT *
FROM baby_names
LIMIT 5;-- Use this table for the answer to question 1:
-- List the overall top five names in alphabetical order and find out if each name is "Classic" or "Trendy."
SELECT
first_name,
SUM(num) AS sum,
CASE
WHEN COUNT(first_name) >= 50 THEN 'Classic'
ELSE 'Trendy'
END AS popularity_type
FROM public.baby_names
GROUP BY first_name
ORDER BY first_name ASC
LIMIT 5
-- Use this table for the answer to question 2:
-- What were the top 20 male names overall, and how did the name Paul rank?
SELECT
ROW_NUMBER() OVER(ORDER BY SUM(num) DESC) AS name_rank,
first_name,
SUM(num) AS sum
FROM public.baby_names
WHERE sex = 'M'
GROUP BY first_name
ORDER BY sum DESC
LIMIT 20-- Use this table for the answer to question 3:
-- Which female names appeared in both 1920 and 2020?
WITH tb AS (
SELECT
first_name,
COUNT(first_name) AS total_occurrences
FROM public.baby_names
WHERE
sex = 'F'
AND
year IN ('1920','2020')
GROUP BY first_name
ORDER BY first_name
)
SELECT
first_name,
total_occurrences
FROM tb
WHERE total_occurrences > 1