RDBS/MYSQL

[프로그래머스]입양 시각 구하기(2)-MySQL

MoonSta 2023. 1. 9. 14:16

2023.01.07 - [MYSQL/프로그래머스-MySQL] - [프로그래머스]입양 시각 구하기(1)-MySQL

 

[프로그래머스]입양 시각 구하기(1)-MySQL

입양 시각 구하기(1) 출처 : https://school.programmers.co.kr/learn/courses/30/lessons/59412 프로그래머스 코드 중심의 개발자 채용. 스택 기반의 포지션 매칭. 프로그래머스의 개발자 맞춤형 프로필을 등록하고

mooonstar.tistory.com

입양 시각 구하기(2)

출처 : https://school.programmers.co.kr/learn/courses/30/lessons/59413

 

프로그래머스

코드 중심의 개발자 채용. 스택 기반의 포지션 매칭. 프로그래머스의 개발자 맞춤형 프로필을 등록하고, 나와 기술 궁합이 잘 맞는 기업들을 매칭 받으세요.

programmers.co.kr

 

문제

 ANIMAL_OUTS 테이블은 동물 보호소에서 입양 보낸 동물의 정보를 담은 테이블입니다. ANIMAL_OUTS 테이블 구조는 다음과 같으며, ANIMAL_ID, ANIMAL_TYPE, DATETIME, NAME, SEX_UPON_OUTCOME는 각각 동물의 아이디, 생물 종, 입양일, 이름, 성별 및 중성화 여부를 나타냅니다.

NAME TYPE NULLABLE
ANIMAL_ID VARCHAR(N) FALSE
ANIMAL_TYPE VARCHAR(N) FALSE
DATETIME DATETIME FALSE
NAME VARCHAR(N) TRUE
SEX_UPON_OUTCOME VARCHAR(N) FALSE

 

ANIMAL_OUTS 조회

SELECT ANIMAL_ID
     , ANIMAL_TYPE
     , DATETIME
     , NAME
     , SEX_UPON_OUTCOME
    FROM ANIMAL_OUTS;
ANIMAL_ID ANIMAL_TYPE DATETIME NAME SEX_UPON_OUTCOME
A349480 Dog 2013-12-22 11:30:00 Daisy Spayed Female
A349733 Dog 2017-09-27 19:09:00 Allie Spayed Female
A349990 Cat 2018-02-02 14:18:00 Spice Spayed Female
A349996 Cat 2018-02-02 14:17:00 Sugar Neutered Male
A350276 Cat 2018-01-28 17:51:00 Jewel Spayed Female
A350375 Cat 2017-05-23 16:17:00 Meo Neutered Male
A352555 Dog 2014-08-10 18:57:00 Harley Spayed Female
A352713 Cat 2017-04-25 12:25:00 Gia Spayed Female
A352872 Dog 2015-07-16 17:58:00 Peanutbutter Neutered Male
A353259 Dog 2016-05-09 10:40:00 Bj Neutered Male
A354540 Cat 2015-01-22 12:07:00 Tux Neutered Male
A354597 Cat 2014-06-03 12:30:00 Ariel Spayed Female
A354725 Dog 2015-08-29 15:17:00 Kia Spayed Female
A354753 Dog 2017-04-22 11:27:00 Sammy Neutered Male
A355519 Dog 2015-05-09 11:15:00 Faith Spayed Female
A355688 Dog 2014-02-23 17:48:00 Shadow Neutered Male
A355753 Dog 2015-09-19 18:08:00 Elijah Neutered Male
A357021 Dog 2014-12-04 15:34:00 Queens Spayed Female
A357444 Dog 2016-03-14 17:24:00 Puppy Neutered Male
A357846 Dog 2016-03-17 18:32:00 Happy Neutered Male
A358697 Dog 2015-02-12 18:50:00 Fuzzo Neutered Male
A358879 Dog 2015-09-15 16:22:00 Simba Neutered Male
A361391 Dog 2015-04-20 11:23:00 Baby Bear Neutered Male
A362103 Dog 2014-11-19 15:35:00 Stitch Neutered Male
A362137 Dog 2014-01-01 07:39:00 *Darcy Spayed Female
A362383 Dog 2016-03-22 17:53:00 *Morado Neutered Male
A362707 Dog 2017-01-10 10:44:00 Girly Girl Spayed Female
A362967 Dog 2014-06-15 11:14:00 Honey Spayed Female
A363653 Dog 2014-11-18 11:55:00 Goofy Neutered Male
A364429 Dog 2015-09-28 18:13:00 Hugo Neutered Male
A365172 Dog 2014-08-30 16:47:00 Diablo Neutered Male
A365302 Dog 2017-01-08 17:29:00 Minnie Spayed Female
A367012 Dog 2015-09-16 13:07:00 Miller Neutered Male
A367438 Dog 2015-09-12 13:30:00 Cookie Spayed Female
A367747 Dog 2014-11-04 08:34:00 Woody Neutered Male
A368742 Dog 2018-02-03 16:06:00 Stormy Spayed Female
A368930 Dog 2014-06-13 15:52:00   Spayed Female
A370439 Dog 2016-06-25 14:15:00 Sniket Neutered Male
A370507 Cat 2015-08-15 09:24:00 Emily Spayed Female
A370852 Dog 2013-11-08 13:19:00 Katie Spayed Female
A371000 Cat 2015-10-02 12:19:00 Greg Neutered Male
A371102 Dog 2015-08-03 12:19:00 Ceballo Neutered Male
A371344 Dog 2015-05-11 15:43:00 Sailor Neutered Male
A371534 Dog 2016-06-07 18:55:00 April Spayed Female
A373219 Cat 2014-08-05 16:16:00 Ella Spayed Female
A373687 Dog 2014-04-08 14:05:00 Rosie Spayed Female
A375393 Dog 2015-06-13 14:22:00 Dash Neutered Male
A376322 Dog 2014-02-18 16:53:00 Mama Dog Spayed Female
A376459 Dog 2017-07-09 13:53:00 Dora Spayed Female
A377750 Dog 2017-10-26 14:19:00 Lucy Spayed Female
A378348 Dog 2014-04-23 07:43:00 Frijolito Neutered Male
A378353 Dog 2014-08-02 12:31:00 Lyla Intact Female
A378818 Dog 2014-07-07 16:34:00 Zoe Spayed Female
A378946 Dog 2017-10-14 18:31:00 Mercedes Spayed Female
A379998 Dog 2013-10-25 12:53:00 Disciple Intact Male
A380009 Dog 2016-02-12 14:32:00 Pickle Spayed Female
A380320 Dog 2014-02-05 14:26:00 Scooby Neutered Male
A380420 Dog 2018-02-22 07:06:00 Laika Spayed Female
A380506 Dog 2016-01-23 12:43:00 Ruby Spayed Female
A381173 Dog 2014-08-06 17:12:00 Pepper Spayed Female
A381217 Dog 2017-06-09 18:51:00 Cherokee Neutered Male
A382192 Dog 2015-03-16 13:46:00 Maxwell 2 Neutered Male
A382251 Dog 2014-11-08 19:01:00 Princess Spayed Female
A383036 Cat 2014-06-28 13:40:00 Oreo Neutered Male
A383964 Dog 2017-02-05 17:56:00 Finney Neutered Male
A384360 Cat 2014-07-16 18:34:00 Jj Neutered Male
A384568 Cat 2014-12-28 13:47:00 Jedi Neutered Male
A385442 Dog 2014-01-11 16:00:00 Clyde Neutered Male
A386005 Dog 2015-09-26 11:15:00 Giovanni Neutered Male
A386276 Cat 2015-12-28 16:24:00 Tiko Neutered Male
A386688 Dog 2015-08-29 17:46:00 Punch Neutered Male
A387083 Dog 2014-02-12 11:12:00 Goldie Spayed Female
A387965 Dog 2014-06-27 11:13:00 Dakota Spayed Female
A388360 Dog 2015-12-26 13:19:00 Spider Neutered Male
A388691 Dog 2015-11-29 18:40:00 Blaze Neutered Male
A390222 Dog 2013-12-15 17:10:00 Holly Spayed Female
A391512 Dog 2016-04-06 18:14:00 Rome Neutered Male
A391858 Dog 2017-03-19 18:12:00 Nellie Spayed Female
A392027 Dog 2014-01-31 18:55:00 Penny Spayed Female
A392075 Dog 2013-11-20 17:04:00 Skips Neutered Male
A392615 Dog 2015-07-26 15:18:00 Chip Neutered Male
A394547 Dog 2015-01-25 11:15:00 Snickerdoodl Spayed Female
A395451 Dog 2016-01-03 15:54:00 Logan Neutered Male
A396810 Dog 2016-12-23 13:19:00 Raven Spayed Female
A397882 Dog 2017-07-12 16:41:00 Charlie Neutered Male
A399421 Dog 2015-08-25 18:23:00 Lucy Spayed Female
A399552 Dog 2013-10-18 13:46:00 Jack Neutered Male
A400498 Dog 2016-10-15 13:57:00 Reggie Neutered Male
A400680 Dog 2017-10-02 14:35:00 Lucy Spayed Female
A403564 Dog 2013-11-18 18:51:00 Anna Spayed Female
A405494 Dog 2014-05-20 11:44:00 Kaila Spayed Female
A406756 Dog 2016-05-14 11:30:00 Sabrina Spayed Female
A407156 Dog 2016-10-28 13:22:00 Jake Neutered Male
A408035 Dog 2014-12-27 12:59:00 Lizzie Spayed Female
A409637 Dog 2016-04-07 18:33:00 Stanley Neutered Male
A410330 Dog 2016-09-13 13:46:00 Chewy Spayed Female
A410668 Cat 2016-06-12 11:46:00 Raven Spayed Female
A410684 Cat 2014-06-27 17:50:00 Mitty Spayed Female
A412173 Dog 2015-08-08 12:22:00 Jimminee Neutered Male
A412626 Dog 2016-03-28 13:15:00 *Sam Neutered Male

보호소에서는 몇 시에 입양이 가장 활발하게 일어나는지 알아보려 합니다. 0시부터 23시까지, 각 시간대별로 입양이 몇 건이나 발생했는지 조회하는 SQL문을 작성해주세요. 이때 결과는 시간대 순으로 정렬해야 합니다.

 

입출력 예

HOUR COUNT
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 3
8 1
9 1
10 2
11 13
12 10
13 14
14 9
15 7
16 10
17 12
18 16
19 2
20 0
21 0
22 0
23 0

풀이 보기


더 효율적인 코드가 있다면 피드백 부탁드립니다.감사합니다!