diff --git a/createdb.sql b/createdb.sql
index 31d4ad6a17888b36322a20b9dda2066f8569eb6c..f033519e5ec4310c11629b1bc0a4949e265e5873 100644
--- a/createdb.sql
+++ b/createdb.sql
@@ -54,6 +54,7 @@ CREATE TABLE `Sessions`(
 		occuredOn date,
     FOREIGN KEY (leaderID) REFERENCES Volunteers(VolunteerID),
     maxAttendees int(10),
+		ageGroup int(3),
     groupid varchar(40),
 		reviewOfProgression varchar(400),
 		reviewOfstaffSafety varchar(400),
@@ -163,6 +164,28 @@ BEGIN
 END$$
 DELIMITER ;
 
+drop procedure if exists VoltoStuRatio;
+delimiter $$
+CREATE PROCEDURE VoltoStuRatio(
+	IN ageGroup int(3),
+	IN noOfVols int(10))
+
+BEGIN
+				IF ageGroup=1
+					THEN
+						SELECT 5 * noOfVols;
+				ELSEIF ageGroup=2
+					then
+							select 8 * noOfVols;
+				ELSEIF ageGroup=3
+					THEN
+							select 12 * noOfVols;
+						END IF;
+
+END$$
+DELIMITER ;
+
+
 drop procedure if exists addBadgereq;
 delimiter $$
 CREATE PROCEDURE addBadgereq(
@@ -302,6 +325,7 @@ CREATE PROCEDURE addSession(
 	IN duration int(10),
 	IN learderID varchar(40),
     IN OccuredOn date,
+		IN ageGroup int(3),
     IN groupID varchar(40))
 
 BEGIN
@@ -309,8 +333,8 @@ BEGIN
     BEGIN
  	SELECT 'User already exists' as ERROR ;
     END;
-        INSERT INTO Sessions(SessionID,location,duration,OccuredOn,groupID,leaderID) values
-	(md5(concat(occuredOn,groupID)),location,duration, OccuredOn,groupID,learderID);
+        INSERT INTO Sessions(SessionID,location,duration,OccuredOn,groupID,leaderID,ageGroup) values
+	(md5(concat(occuredOn,groupID)),location,duration, OccuredOn,groupID,learderID,ageGroup);
 	call volunteerattends(learderID,md5(concat(occuredOn,groupID)));
 END$$
 DELIMITER ;
@@ -327,6 +351,29 @@ BEGIN
 END$$
 DELIMITER ;
 
+drop procedure if exists addToGroup;
+delimiter $$
+CREATE PROCEDURE addToGroup(
+	IN grapeID varchar(40))
+
+BEGIN
+select count(distinct volunteerID) into @noOfVols from volunteerattendance as v0
+				where grapeID in (select groupID from Sessions as s0
+									where v0.sessionID = s0.sessionID And
+													date_add(s0.OccuredOn, interval 14 day) > CURDATE() = 1) ;
+				 select count(*)*(SELECT ageGroup from Sessions where groupID=grapeID limit 1)
+					from students as stu0 where grapeID in
+							(select groupID from sessions as s2 where stu0.studentID in
+										(select studentID from StudentAttendance as att0 where stu0.studentID=att0.StudentID));
+            --    select @noOfStus;
+
+				-- UPDATE WaitList as wl0,students as stu2
+
+      --  UPDATE student set groupID =groupID  where true;
+END$$
+DELIMITER ;
+
+
 drop procedure if exists updateDBS;
 delimiter $$
 CREATE PROCEDURE updateDBS(
@@ -395,14 +442,16 @@ call addVolunteer("timothy","jones",'bob@bbc.co.uk','8e301d6e513165a9c0b6b9a2b10
 
 call updateSG('419fd9859978a9bf79df4ff16c99c5f9',"2020-04-09");
 call updateDBS('419fd9859978a9bf79df4ff16c99c5f9',"2021-09-09");
-call addSession("computer lab",3,'419fd9859978a9bf79df4ff16c99c5f9','2023-02-03','');
+call addSession("computer lab",3,'419fd9859978a9bf79df4ff16c99c5f9','2023-02-03',8,'41');
 call ReviewSession(md5('2023-02-03'),"it was ok","idk");
-call addSession("computer lab",3,'419fd9859978a9bf79df4ff16c99c5f9','2023-01-03','');
+call addSession("computer lab",3,'419fd9859978a9bf79df4ff16c99c5f9','2023-01-03',8,'41');
 call ReviewSession(md5('2023-01-03'),"it was ok","idk");
-call addSession("computer lab",3,'419fd9859978a9bf79df4ff16c99c5f9','2022-11-03','');
-call addSession("computer lab",3,'419fd9859978a9bf79df4ff16c99c5f9','2022-12-03','');
+call addSession("computer lab",3,'419fd9859978a9bf79df4ff16c99c5f9','2022-11-03',8,'41');
+call addSession("computer lab",3,'419fd9859978a9bf79df4ff16c99c5f9','2023-04-16',8,'41');
+CALL STUDENTATTENDS('562fe5b6c65003a11148594678c42b90','94b21f931d888fefd4da7a07c01dff4a');
+call studentattends('313b6d9a06c3a0618f72ec75c082b6a4','94b21f931d888fefd4da7a07c01dff4a');
 call viewVolunteer('');
-select * from Sessions;
--- call viewCheckExpiries();
-
--- select * from volunteers;
+select * from sessions;
+select * from students;
+call viewCheckExpiries();
+call addToGroup('41');