Oralce PL/SQL examples of recursion (#91)

03_recursion/plsql/01_countdown.sql

@@ -0,0 +1,22 @@
+SET SERVEROUTPUT ON
+DECLARE  
+   result NUMBER; 
+   
+FUNCTION countdown(x NUMBER)  
+RETURN NUMBER  
+IS  
+   f NUMBER;
+ 
+BEGIN  
+    dbms_output.put_line(x);
+   IF x <= 0  THEN  
+      return x;
+   ELSE  
+      f := countdown(x - 1);  
+   END IF;  
+RETURN f;  
+END;  
+   
+BEGIN  
+  result := countdown(5);  
+END;