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Chapter 13 revisions per tech review

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anthonydb 2021-05-20 09:05:59 -04:00
parent 748528c617
commit c817174978
1 changed files with 3 additions and 2 deletions
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Chapter_13/Chapter_13.sql
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@ -295,7 +295,7 @@ WITH (FORMAT CSV, HEADER);
SELECT * SELECT *
FROM crosstab('SELECT FROM crosstab('SELECT
station_name, station_name,
date_part($$month$$, observation_date), date_part(''month'', observation_date),
percentile_cont(.5) percentile_cont(.5)
WITHIN GROUP (ORDER BY max_temp) WITHIN GROUP (ORDER BY max_temp)
FROM temperature_readings FROM temperature_readings
@ -332,7 +332,8 @@ SELECT max_temp,
WHEN max_temp < 20 THEN 'Inhumane' WHEN max_temp < 20 THEN 'Inhumane'
ELSE 'No reading' ELSE 'No reading'
END AS temperature_group END AS temperature_group
FROM temperature_readings; FROM temperature_readings
ORDER BY station_name, observation_date;
-- Listing 13-21: Using CASE in a Common Table Expression -- Listing 13-21: Using CASE in a Common Table Expression