Oracle PLSQL Demo - 29.01.Function结构模板 [无入参] [有返回]

CREATE OR REPLACE FUNCTION function_name RETURN DATE AS
v_date DATE;
BEGIN
SELECT t.hiredate INTO v_date FROM scott.emp t WHERE rownum = 1;

dbms_output.put_line(v_date);
RETURN v_date;
END function_name;