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ada-dmitry
2023-11-27 13:54:11 +03:00
parent d177467c09 cb30b4bb84
commit 81ec68f4fa
1 changed files with 6 additions and 10 deletions
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Lab/Lab#5/lab5.sql
+6 -10
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@@ -34,13 +34,9 @@ SELECT *
FROM bd_employees FROM bd_employees
WHERE LENGTH(REGEXP_REPLACE(first_name, '[^aeiouAEIOU]', '', 'g')) <= 3; WHERE LENGTH(REGEXP_REPLACE(first_name, '[^aeiouAEIOU]', '', 'g')) <= 3;
WITH tmp AS WITH tmp AS (
( SELECT chr(i+96), i FROM generate_series(1,26) i)
SELECT SELECT e.last_name sum(t.i) AS name_sum
last_name, FROM db_employees e
(REGEXP_MATCHES(LOWER(last_name), '[a-z]', 'g'))[1] AS l, JOIN tmp t ON t.chr = ANY(string_to_array(LOWER(e.last_name), NULL))
COUNT(*)*(ASCII((REGEXP_MATCHES(LOWER(last_name), '[a-z]', 'g'))[1]) - 96) AS cnt_l GROUP BY e.last_name;
FROM bd_employees
GROUP BY last_name, l
)
SELECT last_name, sum(cnt_l) FROM tmp GROUP BY last_name;