fix: 날짜 표시 UTC → KST 변환 (admin 페이지들)

backend/test_query_perf.py

@@ -0,0 +1,60 @@
+# -*- coding: utf-8 -*-
+import pyodbc
+import time
+
+conn_str = (
+    'DRIVER={ODBC Driver 17 for SQL Server};'
+    'SERVER=192.168.0.4\\PM2014;'
+    'DATABASE=PM_PRES;'
+    'UID=sa;'
+    'PWD=tmddls214!%(;'
+    'TrustServerCertificate=yes;'
+    'Connection Timeout=10'
+)
+
+conn = pyodbc.connect(conn_str, timeout=10)
+cur = conn.cursor()
+
+# 현재 쿼리 성능 측정
+start = time.time()
+
+query = """
+WITH PatientUsage AS (
+    SELECT DISTINCT
+        P.DrugCode,
+        M.Paname,
+        MAX(CASE WHEN M.Indate >= '20260306' AND M.Indate <= '20260306' THEN 1 ELSE 0 END) as used_in_period
+    FROM PS_sub_pharm P
+    JOIN PS_main M ON P.PreSerial = M.PreSerial
+    WHERE M.Indate >= CONVERT(VARCHAR, DATEADD(YEAR, -1, GETDATE()), 112)
+    GROUP BY P.DrugCode, M.Paname
+)
+SELECT 
+    PU.DrugCode as drug_code,
+    COUNT(*) as patient_count,
+    STUFF((
+        SELECT ', ' + PU2.Paname
+        FROM PatientUsage PU2
+        WHERE PU2.DrugCode = PU.DrugCode
+        ORDER BY PU2.Paname
+        FOR XML PATH(''), TYPE
+    ).value('.', 'NVARCHAR(MAX)'), 1, 2, '') as patient_names,
+    STUFF((
+        SELECT ', ' + PU3.Paname
+        FROM PatientUsage PU3
+        WHERE PU3.DrugCode = PU.DrugCode AND PU3.used_in_period = 1
+        ORDER BY PU3.Paname
+        FOR XML PATH(''), TYPE
+    ).value('.', 'NVARCHAR(MAX)'), 1, 2, '') as today_patients
+FROM PatientUsage PU
+GROUP BY PU.DrugCode
+HAVING COUNT(*) <= 3
+"""
+
+cur.execute(query)
+rows = cur.fetchall()
+elapsed = time.time() - start
+
+print(f"결과: {len(rows)}개 약품")
+print(f"실행 시간: {elapsed:.2f}초")
+print(f"약품당: {elapsed/len(rows)*1000:.2f}ms" if rows else "")