Minor edits during proofreading

This commit is contained in:
Anthony DeBarros 2021-09-24 14:32:32 -04:00
parent 946dc77407
commit 14795ecd35
2 changed files with 4 additions and 4 deletions

View File

@ -36,7 +36,7 @@ SELECT (7 + 8) * 9; -- answer: 135
SELECT 3 ^ 3 - 1; -- answer: 26 SELECT 3 ^ 3 - 1; -- answer: 26
SELECT 3 ^ (3 - 1); -- answer: 9 SELECT 3 ^ (3 - 1); -- answer: 9
-- Listing 6-4: Selecting Census population estimate columns with aliases -- Listing 6-4: Selecting census population estimate columns with aliases
SELECT county_name AS county, SELECT county_name AS county,
state_name AS state, state_name AS state,
@ -60,7 +60,7 @@ SELECT county_name AS county,
FROM us_counties_pop_est_2019 FROM us_counties_pop_est_2019
ORDER BY state_name, county_name; ORDER BY state_name, county_name;
-- Listing 6-6: Checking Census data totals -- Listing 6-6: Checking census data totals
SELECT county_name AS county, SELECT county_name AS county,
state_name AS state, state_name AS state,
@ -104,7 +104,7 @@ SELECT department,
spend_2019, spend_2019,
spend_2022, spend_2022,
round( (spend_2022 - spend_2019) / round( (spend_2022 - spend_2019) /
spend_2019 * 100, 1 ) AS pct_change spend_2019 * 100, 1) AS pct_change
FROM percent_change; FROM percent_change;
-- Listing 6-9: Using the sum() and avg() aggregate functions -- Listing 6-9: Using the sum() and avg() aggregate functions

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@ -167,7 +167,7 @@ SELECT CAST('4//2021' AS timestamp with time zone);
---------------------------------------------------------------------------- ----------------------------------------------------------------------------
-- 1. Write a WITH statement to include with COPY to handle the import of an -- 1. Write a WITH statement to include with COPY to handle the import of an
-- imaginary text file that has a first couple of rows that look like this: -- imaginary text file whose first couple of rows look like this:
id:movie:actor id:movie:actor
50:#Mission: Impossible#:Tom Cruise 50:#Mission: Impossible#:Tom Cruise