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[level 2] Title: 진료과별 총 예약 횟수 출력하기, Time: 0.00 ms, Memory: 0.0 MB -BaekjoonHub
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‎프로그래머스/2/132202. 진료과별 총 예약 횟수 출력하기/README.md‎

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# [level 2] 진료과별 총 예약 횟수 출력하기 - 132202
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[문제 링크](https://school.programmers.co.kr/learn/courses/30/lessons/132202)
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### 성능 요약
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메모리: 0.0 MB, 시간: 0.00 ms
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### 구분
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코딩테스트 연습 > GROUP BY
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### 채점결과
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Empty
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### 제출 일자
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2025년 10월 09일 16:42:15
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### 문제 설명
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<p>다음은 종합병원의 진료 예약정보를 담은 <code>APPOINTMENT</code> 테이블 입니다.<br>
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<code>APPOINTMENT</code> 테이블은 다음과 같으며 <code>APNT_YMD</code>, <code>APNT_NO</code>, <code>PT_NO</code>, <code>MCDP_CD</code>, <code>MDDR_ID</code>, <code>APNT_CNCL_YN</code>, <code>APNT_CNCL_YMD</code>는 각각 진료예약일시, 진료예약번호, 환자번호, 진료과코드, 의사ID, 예약취소여부, 예약취소날짜를 나타냅니다.</p>
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<table class="table">
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<thead><tr>
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<th>Column name</th>
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<th>Type</th>
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<th>Nullable</th>
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</tr>
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</thead>
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<tbody><tr>
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<td>APNT_YMD</td>
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<td>TIMESTAMP</td>
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<td>FALSE</td>
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</tr>
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<tr>
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<td>APNT_NO</td>
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<td>NUMBER(5)</td>
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<td>FALSE</td>
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</tr>
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<tr>
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<td>PT_NO</td>
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<td>VARCHAR(10)</td>
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<td>FALSE</td>
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</tr>
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<tr>
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<td>MCDP_CD</td>
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<td>VARCHAR(6)</td>
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<td>FALSE</td>
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</tr>
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<tr>
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<td>MDDR_ID</td>
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<td>VARCHAR(10)</td>
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<td>FALSE</td>
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</tr>
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<tr>
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<td>APNT_CNCL_YN</td>
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<td>VARCHAR(1)</td>
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<td>TRUE</td>
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</tr>
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<tr>
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<td>APNT_CNCL_YMD</td>
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<td>DATE</td>
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<td>TRUE</td>
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</tr>
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</tbody>
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</table>
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<hr>
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<h5>문제</h5>
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<p><code>APPOINTMENT</code> 테이블에서 2022년 5월에 예약한 환자 수를 진료과코드 별로 조회하는 SQL문을 작성해주세요. 이때, 컬럼명은 '진료과 코드', '5월예약건수'로 지정해주시고 결과는 진료과별 예약한 환자 수를 기준으로 오름차순 정렬하고, 예약한 환자 수가 같다면 진료과 코드를 기준으로 오름차순 정렬해주세요.</p>
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<hr>
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<h5>예시</h5>
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<p><code>APPOINTMENT</code> 테이블이 다음과 같을 때</p>
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<table class="table">
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<thead><tr>
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<th>APNT_YMD</th>
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<th>APNT_NO</th>
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<th>PT_NO</th>
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<th>MCDP_CD</th>
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<th>MDDR_ID</th>
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<th>APNT_CNCL_YN</th>
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<th>APNT_CNCL_YMD</th>
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</tr>
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</thead>
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<tbody><tr>
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<td>2022-04-14 09:30:00.000000</td>
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<td>47</td>
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<td>PT22000064</td>
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<td>GS</td>
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<td>DR20170123</td>
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<td>N</td>
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<td>NULL</td>
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</tr>
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<tr>
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<td>2022-04-15 10:30:00.000000</td>
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<td>48</td>
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<td>PT22000065</td>
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<td>OB</td>
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<td>DR20100231</td>
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<td>N</td>
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<td>NULL</td>
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</tr>
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<tr>
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<td>2022-05-15 17:30:00.000000</td>
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<td>49</td>
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<td>PT22000086</td>
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<td>OB</td>
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<td>DR20100231</td>
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<td>N</td>
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<td>NULL</td>
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</tr>
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<tr>
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<td>2022-05-18 10:30:00.000000</td>
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<td>52</td>
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<td>PT22000019</td>
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<td>GS</td>
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<td>DR20100039</td>
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<td>N</td>
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<td>NULL</td>
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</tr>
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<tr>
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<td>2022-05-19 12:00:00.000000</td>
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<td>53</td>
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<td>PT22000020</td>
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<td>FM</td>
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<td>DR20010112</td>
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<td>N</td>
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<td>NULL</td>
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</tr>
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<tr>
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<td>2022-05-22 08:30:00.000000</td>
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<td>54</td>
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<td>PT22000021</td>
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<td>GS</td>
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<td>DR20100039</td>
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<td>N</td>
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<td>NULL</td>
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</tr>
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<tr>
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<td>2022-05-04 10:30:00.000000</td>
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<td>56</td>
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<td>PT22000023</td>
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<td>FM</td>
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<td>DR20090112</td>
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<td>N</td>
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<td>NULL</td>
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</tr>
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<tr>
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<td>2022-05-14 15:30:00.000000</td>
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<td>57</td>
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<td>PT22000074</td>
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<td>CS</td>
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<td>DR20200012</td>
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<td>N</td>
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<td>NULL</td>
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</tr>
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<tr>
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<td>2022-05-24 15:30:00.000000</td>
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<td>58</td>
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<td>PT22000085</td>
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<td>CS</td>
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<td>DR20200012</td>
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<td>N</td>
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<td>NULL</td>
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</tr>
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<tr>
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<td>2022-05-28 10:00:00.000000</td>
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<td>60</td>
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<td>PT22000092</td>
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<td>OS</td>
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<td>DR20100031</td>
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<td>N</td>
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<td>NULL</td>
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</tr>
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</tbody>
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</table>
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<p>SQL을 실행하면 다음과 같이 출력되어야 합니다.</p>
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<table class="table">
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<thead><tr>
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<th>진료과코드</th>
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<th>5월예약건수</th>
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</tr>
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</thead>
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<tbody><tr>
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<td>OB</td>
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<td>1</td>
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</tr>
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<tr>
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<td>OS</td>
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<td>1</td>
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</tr>
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<tr>
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<td>CS</td>
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<td>2</td>
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</tr>
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<tr>
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<td>FM</td>
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<td>2</td>
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</tr>
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<tr>
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<td>GS</td>
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<td>2</td>
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</tr>
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</tbody>
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</table>
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> 출처: 프로그래머스 코딩 테스트 연습, https://school.programmers.co.kr/learn/challenges

‎프로그래머스/2/132202. 진료과별 총 예약 횟수 출력하기/진료과별 총 예약 횟수 출력하기.sql‎

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-- 코드를 입력하세요
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SELECT MCDP_CD AS '진료과 코드', COUNT(PT_NO) AS '5월예약건수'
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FROM APPOINTMENT
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WHERE APNT_YMD LIKE '2022-05%'
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GROUP BY MCDP_CD
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ORDER BY COUNT(PT_NO) ASC, MCDP_CD ASC;

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