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Chapters 9 & 10 edits

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This commit is contained in:
anthonydb 2020-11-16 21:40:06 -05:00
parent a316cc5eea
commit b0f9422406
2 changed files with 1 additions and 7 deletions
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2
Chapter_09/Chapter_09.sql
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@ -258,7 +258,7 @@ GROUP BY stabr, stataddr
ORDER BY stabr, stataddr; ORDER BY stabr, stataddr;
-- Listing 9-11: Using the sum() aggregate function to total visits to -- Listing 9-11: Using the sum() aggregate function to total visits to
-- libraries in 2014 and 2009 -- libraries in 2016, 2017, and 2018
-- 2018 -- 2018
SELECT sum(visits) AS visits_2018 SELECT sum(visits) AS visits_2018

6
Chapter_10/Chapter_10.sql
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@ -101,12 +101,6 @@ SET st_copy = st;
-- Listing 10-10: Checking values in the st and st_copy columns -- Listing 10-10: Checking values in the st and st_copy columns
SELECT st,
st_copy
FROM meat_poultry_egg_establishments
ORDER BY st;
-- With WHERE clause to check for equality
SELECT st, SELECT st,
st_copy st_copy
FROM meat_poultry_egg_establishments FROM meat_poultry_egg_establishments