procedure, function

procedure.sql

@@ -0,0 +1,47 @@
+USE Study
+GO
+
+-- 생성
+CREATE PROC EMP_PRO
+AS
+	SELECT ENAME, JOB, SALARY
+	FROM EMPLOYEE
+	WHERE ENO = 109
+
+GO
+EXEC EMP_PRO
+
+-- 수정
+ALTER PROC EMP_PRO
+AS
+	SELECT ENAME, JOB, SALARY
+	FROM EMPLOYEE
+	WHERE ENO = 110
+
+GO
+EXEC EMP_PRO
+
+-- 입력 매개변수 활용
+CREATE PROC EMP_PRO_PARAM
+@enumber INT
+AS
+	SELECT ENAME, JOB, SALARY
+	FROM EMPLOYEE
+	WHERE ENO = @enumber
+
+GO
+EXEC EMP_PRO_PARAM 101
+
+-- 출력 매개변수 활용
+CREATE PROC EMP_PRO_OUT_PARAM
+@did INT,
+@avg_sal INT OUTPUT
+AS
+	SELECT @avg_sal = AVG(SALARY)
+	FROM EMPLOYEE
+	WHERE EMPLOYEE.DNO = @did
+
+GO
+DECLARE @AVG_SALARY INT
+EXEC EMP_PRO_OUT_PARAM 30, @AVG_SALARY OUTPUT
+SELECT @AVG_SALARY

user defined function.sql

@@ -0,0 +1,43 @@
+USE Study
+GO
+
+-- »ý¼º
+CREATE FUNCTION MAX_SAL
+(@DNO_PARA INT)
+RETURNS INT
+AS
+	BEGIN
+
+	DECLARE @MAX_VAL INT
+
+	SELECT @MAX_VAL = MAX(SALARY)
+	FROM EMPLOYEE
+	WHERE DNO = @DNO_PARA
+
+	RETURN @MAX_VAL
+
+	END
+
+GO
+SELECT * FROM EMPLOYEE WHERE SALARY = dbo.MAX_SAL(30)
+
+-- Å×ÀÌºí ¹Ýȯ ÇÔ¼ö
+CREATE FUNCTION EMP_DEPT
+(@dno_para INT)
+RETURNS @emp_dep_table TABLE(
+	EMP_ID INT,
+	EMP_NAME VARCHAR(20)
+	)
+AS
+	BEGIN
+
+	INSERT INTO @emp_dep_table
+		SELECT EMPLOYEE.ENO, EMPLOYEE.ENAME
+		FROM EMPLOYEE
+		WHERE DNO = @dno_para
+
+	RETURN
+	END
+
+GO
+SELECT * FROM dbo.EMP_DEPT(20)