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기술문서:레퍼런스:쿼리:응용:pivot_query
이 문서는 읽기 전용입니다. 원본을 볼 수는 있지만 바꿀 수는 없습니다. 문제가 있다고 생각하면 관리자에게 문의하세요.
{{htmlmetatags> metatag-description=(피벗 쿼리, Pivot Query, 피벗, Pivot, 데이터베이스, DBMS, SQL, MySQL, MariaDB, MSSQL, Oracle, Tibero, PostgreSQL) metatag-og:description=(피벗 쿼리, Pivot Query, 피벗, Pivot, 데이터베이스, DBMS, SQL, MySQL, MariaDB, MSSQL, Oracle, Tibero, PostgreSQL) }} ====== Pivot Query ====== <note tip> 최소 지원 버전은 약간의 차이가 있을 수 있습니다. </note> ===== 테이블 명세 ===== ^ 물리명 ^ 논리명 ^ 타입 ^ 길이 ^ | 년 | year | 문자형 | 100 | | 월 | month | 문자형 | 100 | | 일수 | day_cnt | 숫자형 | | ===== SQL 스크립트 ===== <sxh sql; gutter: true; title: DDL;> CREATE TABLE ex_pivot ( year VARCHAR(100) NOT NULL, month VARCHAR(100) NOT NULL, day_cnt INT NOT NULL ); </sxh> <sxh sql; gutter: true; title: DML;> INSERT INTO ex_pivot (year, month, day_cnt) VALUES ('2025', 'jan', 31); INSERT INTO ex_pivot (year, month, day_cnt) VALUES ('2025', 'feb', 28); INSERT INTO ex_pivot (year, month, day_cnt) VALUES ('2025', 'mar', 31); INSERT INTO ex_pivot (year, month, day_cnt) VALUES ('2025', 'apr', 30); INSERT INTO ex_pivot (year, month, day_cnt) VALUES ('2025', 'may', 31); INSERT INTO ex_pivot (year, month, day_cnt) VALUES ('2025', 'jun', 30); INSERT INTO ex_pivot (year, month, day_cnt) VALUES ('2025', 'jul', 31); INSERT INTO ex_pivot (year, month, day_cnt) VALUES ('2025', 'aug', 31); INSERT INTO ex_pivot (year, month, day_cnt) VALUES ('2025', 'sep', 30); INSERT INTO ex_pivot (year, month, day_cnt) VALUES ('2025', 'oct', 31); INSERT INTO ex_pivot (year, month, day_cnt) VALUES ('2025', 'nov', 30); INSERT INTO ex_pivot (year, month, day_cnt) VALUES ('2025', 'dec', 31); </sxh> ===== MySQL/MariaDB ===== <sxh sql; gutter: true;> /* MySQL 5.0.1 이상/MariaDB 5.1 이상 */ SELECT year , MAX(CASE WHEN month = 'jan' THEN day_cnt ELSE NULL END) AS jan_day_cnt , MAX(CASE WHEN month = 'feb' THEN day_cnt ELSE NULL END) AS feb_day_cnt , MAX(CASE WHEN month = 'mar' THEN day_cnt ELSE NULL END) AS mar_day_cnt , MAX(CASE WHEN month = 'apr' THEN day_cnt ELSE NULL END) AS apr_day_cnt , MAX(CASE WHEN month = 'may' THEN day_cnt ELSE NULL END) AS may_day_cnt , MAX(CASE WHEN month = 'jun' THEN day_cnt ELSE NULL END) AS jun_day_cnt , MAX(CASE WHEN month = 'jul' THEN day_cnt ELSE NULL END) AS jul_day_cnt , MAX(CASE WHEN month = 'aug' THEN day_cnt ELSE NULL END) AS aug_day_cnt , MAX(CASE WHEN month = 'sep' THEN day_cnt ELSE NULL END) AS sep_day_cnt , MAX(CASE WHEN month = 'oct' THEN day_cnt ELSE NULL END) AS oct_day_cnt , MAX(CASE WHEN month = 'nov' THEN day_cnt ELSE NULL END) AS nov_day_cnt , MAX(CASE WHEN month = 'dec' THEN day_cnt ELSE NULL END) AS dec_day_cnt FROM ex_pivot GROUP BY year ; </sxh> ===== MSSQL ===== <sxh sql; gutter: true;> /* MSSQL 2000 이상 */ SELECT year , MAX(CASE WHEN month = 'jan' THEN day_cnt ELSE NULL END) AS jan_day_cnt , MAX(CASE WHEN month = 'feb' THEN day_cnt ELSE NULL END) AS feb_day_cnt , MAX(CASE WHEN month = 'mar' THEN day_cnt ELSE NULL END) AS mar_day_cnt , MAX(CASE WHEN month = 'apr' THEN day_cnt ELSE NULL END) AS apr_day_cnt , MAX(CASE WHEN month = 'may' THEN day_cnt ELSE NULL END) AS may_day_cnt , MAX(CASE WHEN month = 'jun' THEN day_cnt ELSE NULL END) AS jun_day_cnt , MAX(CASE WHEN month = 'jul' THEN day_cnt ELSE NULL END) AS jul_day_cnt , MAX(CASE WHEN month = 'aug' THEN day_cnt ELSE NULL END) AS aug_day_cnt , MAX(CASE WHEN month = 'sep' THEN day_cnt ELSE NULL END) AS sep_day_cnt , MAX(CASE WHEN month = 'oct' THEN day_cnt ELSE NULL END) AS oct_day_cnt , MAX(CASE WHEN month = 'nov' THEN day_cnt ELSE NULL END) AS nov_day_cnt , MAX(CASE WHEN month = 'dec' THEN day_cnt ELSE NULL END) AS dec_day_cnt FROM ex_pivot GROUP BY year ; /* MSSQL 2005 이상 */ SELECT year , [jan] AS jan_day_cnt , [feb] AS feb_day_cnt , [mar] AS mar_day_cnt , [apr] AS apr_day_cnt , [may] AS may_day_cnt , [jun] AS jun_day_cnt , [jul] AS jul_day_cnt , [aug] AS aug_day_cnt , [sep] AS sep_day_cnt , [oct] AS oct_day_cnt , [nov] AS nov_day_cnt , [dec] AS dec_day_cnt FROM (SELECT year , month , day_cnt FROM ex_pivot ) src PIVOT ( MAX(day_cnt) FOR month IN ( [jan] , [feb] , [mar] , [apr] , [may] , [jun] , [jul] , [aug] , [sep] , [oct] , [nov] , [dec] ) ) pvt ; </sxh> ===== Oracle/Tibero ===== <sxh sql; gutter: true;> /* Oracle 8i 이상/Tibero 3 이상 */ SELECT year , MAX(CASE WHEN month = 'jan' THEN day_cnt ELSE NULL END) AS jan_day_cnt , MAX(CASE WHEN month = 'feb' THEN day_cnt ELSE NULL END) AS feb_day_cnt , MAX(CASE WHEN month = 'mar' THEN day_cnt ELSE NULL END) AS mar_day_cnt , MAX(CASE WHEN month = 'apr' THEN day_cnt ELSE NULL END) AS apr_day_cnt , MAX(CASE WHEN month = 'may' THEN day_cnt ELSE NULL END) AS may_day_cnt , MAX(CASE WHEN month = 'jun' THEN day_cnt ELSE NULL END) AS jun_day_cnt , MAX(CASE WHEN month = 'jul' THEN day_cnt ELSE NULL END) AS jul_day_cnt , MAX(CASE WHEN month = 'aug' THEN day_cnt ELSE NULL END) AS aug_day_cnt , MAX(CASE WHEN month = 'sep' THEN day_cnt ELSE NULL END) AS sep_day_cnt , MAX(CASE WHEN month = 'oct' THEN day_cnt ELSE NULL END) AS oct_day_cnt , MAX(CASE WHEN month = 'nov' THEN day_cnt ELSE NULL END) AS nov_day_cnt , MAX(CASE WHEN month = 'dec' THEN day_cnt ELSE NULL END) AS dec_day_cnt FROM ex_pivot GROUP BY year ; /* Oracle 11g 이상/Tibero 6 이상 */ SELECT * FROM (SELECT year , month , day_cnt FROM ex_pivot ) PIVOT ( MAX(day_cnt) FOR month IN ( 'jan' AS jan_day_cnt , 'feb' AS feb_day_cnt , 'mar' AS mar_day_cnt , 'apr' AS apr_day_cnt , 'may' AS may_day_cnt , 'jun' AS jun_day_cnt , 'jul' AS jul_day_cnt , 'aug' AS aug_day_cnt , 'sep' AS sep_day_cnt , 'oct' AS oct_day_cnt , 'nov' AS nov_day_cnt , 'dec' AS dec_day_cnt ) ) ; </sxh> ===== PostgreSQL ===== <sxh sql; gutter: true;> /* PostgreSQL 7.1 이상 */ SELECT year , MAX(CASE WHEN month = 'jan' THEN day_cnt ELSE NULL END) AS jan_day_cnt , MAX(CASE WHEN month = 'feb' THEN day_cnt ELSE NULL END) AS feb_day_cnt , MAX(CASE WHEN month = 'mar' THEN day_cnt ELSE NULL END) AS mar_day_cnt , MAX(CASE WHEN month = 'apr' THEN day_cnt ELSE NULL END) AS apr_day_cnt , MAX(CASE WHEN month = 'may' THEN day_cnt ELSE NULL END) AS may_day_cnt , MAX(CASE WHEN month = 'jun' THEN day_cnt ELSE NULL END) AS jun_day_cnt , MAX(CASE WHEN month = 'jul' THEN day_cnt ELSE NULL END) AS jul_day_cnt , MAX(CASE WHEN month = 'aug' THEN day_cnt ELSE NULL END) AS aug_day_cnt , MAX(CASE WHEN month = 'sep' THEN day_cnt ELSE NULL END) AS sep_day_cnt , MAX(CASE WHEN month = 'oct' THEN day_cnt ELSE NULL END) AS oct_day_cnt , MAX(CASE WHEN month = 'nov' THEN day_cnt ELSE NULL END) AS nov_day_cnt , MAX(CASE WHEN month = 'dec' THEN day_cnt ELSE NULL END) AS dec_day_cnt FROM ex_pivot GROUP BY year ; </sxh> {{tag>"쿼리" "Query" "응용"}}
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