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Chapter 6 minor formatting

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anthonydb 2020-08-29 15:21:22 -04:00
parent 4dda612bb4
commit e859e4dee0
1 changed files with 3 additions and 3 deletions
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6
Chapter_06/Chapter_06.sql
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@ -143,19 +143,19 @@ FROM us_counties_pop_est_2019;
-- Extra: -- Extra:
-- quintiles -- quintiles
SELECT percentile_cont(array[.2,.4,.6,.8]) SELECT percentile_cont(ARRAY[.2,.4,.6,.8])
WITHIN GROUP (ORDER BY pop_est_2019) AS quintiles WITHIN GROUP (ORDER BY pop_est_2019) AS quintiles
FROM us_counties_pop_est_2019; FROM us_counties_pop_est_2019;
-- deciles -- deciles
SELECT percentile_cont(array[.1,.2,.3,.4,.5,.6,.7,.8,.9]) SELECT percentile_cont(ARRAY[.1,.2,.3,.4,.5,.6,.7,.8,.9])
WITHIN GROUP (ORDER BY pop_est_2019) AS deciles WITHIN GROUP (ORDER BY pop_est_2019) AS deciles
FROM us_counties_pop_est_2019; FROM us_counties_pop_est_2019;
-- Listing 6-13: Using unnest() to turn an array into rows -- Listing 6-13: Using unnest() to turn an array into rows
SELECT unnest( SELECT unnest(
percentile_cont(array[.25,.5,.75]) percentile_cont(ARRAY[.25,.5,.75])
WITHIN GROUP (ORDER BY pop_est_2019) WITHIN GROUP (ORDER BY pop_est_2019)
) AS quartiles ) AS quartiles
FROM us_counties_pop_est_2019; FROM us_counties_pop_est_2019;