Chapter 7 data and code updates

2020-09-04 18:26:59 -04:00 · 2020-09-04 18:26:59 -04:00 · 9b8305ad6f
commit 9b8305ad6f
parent 7c60ce3b9c
1 changed files with 6 additions and 1 deletions
--- a/Try_It_Yourself/Try_It_Yourself.sql
+++ b/Try_It_Yourself/Try_It_Yourself.sql
@ -336,8 +336,13 @@ ON c2019.state_fips = c2010.state_fips
 ORDER BY pct_change ASC;


-- 2.
+-- 2. Apply the concepts you learned about UNION to create query 
+-- results that merge queries of the Census county population estimates
+-- for 2010 and 2019. Your results should include a column called year
+-- that specifies the year of the estimate for each row in the results.

+-- Answer:
+-- Note that you pass a string for the year in both queries.
 SELECT '2010' AS year,
       state_fips,
       county_fips,