Change Database

create_functions.sql

@@ -0,0 +1,23 @@
+-- Function untuk menghitung rata-rata IPK mahasiswa aktif
+CREATE OR REPLACE FUNCTION get_ipk_rata_aktif()
+RETURNS TABLE(rata_rata_ipk_aktif NUMERIC) AS $$
+BEGIN
+  RETURN QUERY
+  SELECT ROUND(AVG(m.ipk), 2) AS rata_rata_ipk_aktif
+  FROM status_mahasiswa sm
+  JOIN mahasiswa m ON sm.nim = m.nim
+  WHERE sm.status_kuliah = 'Aktif' AND m.ipk IS NOT NULL;
+END;
+$$ LANGUAGE plpgsql;
+
+-- Function untuk menghitung rata-rata IPK mahasiswa lulus
+CREATE OR REPLACE FUNCTION get_ipk_rata_lulus()
+RETURNS TABLE(rata_rata_ipk_lulus NUMERIC) AS $$
+BEGIN
+  RETURN QUERY
+  SELECT ROUND(AVG(m.ipk), 2) AS rata_rata_ipk_lulus
+  FROM status_mahasiswa sm
+  JOIN mahasiswa m ON sm.nim = m.nim
+  WHERE sm.status_kuliah = 'Lulus' AND m.ipk IS NOT NULL;
+END;
+$$ LANGUAGE plpgsql;