SQL & PL/SQL

Hi All,

I am using Oracle 11g Release 2 database.

I have the following data set:

ClassRooms
ClassId ClassName Capacity Group
------ ---------------------------------------------- -------------- -----------
1 Babbage/Software Engg Lab 24 1
2 Basement - PG Block 63 1
3 Classroom 1 56 1
4 Classroom 10 24 1
5 Classroom 11 24 1
6 Classroom 12 35 1
7 Classroom 13 42 1
8 Classroom 14 42 1
9 Classroom 15 42 1
10 Classroom 2 35 1
11 Classroom 3 35 1
12 Classroom 4 35 1
13 Classroom 5 35 1
14 Classroom 6 25 1
15 Classroom 7 25 1
16 Classroom 8 24 1
17 Classroom 9 24 1
18 Control Sys Lab 24 1
19 Dig & Embd Sys Lab 20 1
20 DSP & Comm Lab 20 1
21 Electromechanical System Lab 28 1
22 Farabi/Web Tech Lab 36 1
23 Gen Purpose Lab 40 1
24 Shirazi/DB Tech Lab 36 1
25 Adv Elect Lab 30 2
26 Classroom 16 42 2
27 Classroom 17 49 2
28 Classroom 18 56 2
29 Classroom 19 42 2
30 Classroom 20 49 2
31 Classroom 21 35 3
32 Classroom 22 35 3
33 MDA Lab 20 3

DegreeBatches
BatchId BatchName Strength
--------------- ----------------------- --------------
1 BIT-11 79
2 BIT-12 28
3 BS(CS)-1 35
4 BS(CS)-2 78
5 BE(SE)-1 69
6 BE(SE)-2 84
7 BE(SE)-3 64
8 BICSE-7 84
9 BICSE-8 43
10 BEE-1 112
11 BEE-2 151
12 BEE-3 157
13 BEE-4 157

I want to map a degree batch combination to a class rooms group in such away that they fully utilize maximum capacity of the class rooms within a group (Ideal case) or as close to it as possible. Can it be done with a SQL query?

Any response will be highly appreciated.

SQL Scripts to generate the required tables and populate data is below:
CREATE TABLE ClassRooms (ClassId NUMBER, ClassName VARCHAR2(50), Capacity NUMBER, Group NUMBER);
INSERT INTO ClassRooms VALUES(1,'Babbage/Software Engg Lab',24,1);
INSERT INTO ClassRooms VALUES(2,'Basement - PG Block',63,1);
INSERT INTO ClassRooms VALUES(3,'Classroom 1',56,1);
INSERT INTO ClassRooms VALUES(4,'Classroom 10',24,1);
INSERT INTO ClassRooms VALUES(5,'Classroom 11',24,1);
INSERT INTO ClassRooms VALUES(6,'Classroom 12',35,1);
INSERT INTO ClassRooms VALUES(7,'Classroom 13',42,1);
INSERT INTO ClassRooms VALUES(8,'Classroom 14',42,1);
INSERT INTO ClassRooms VALUES(9,'Classroom 15',42,1);
INSERT INTO ClassRooms VALUES(10,'Classroom 2',35,1);
INSERT INTO ClassRooms VALUES(11,'Classroom 3',35,1);
INSERT INTO ClassRooms VALUES(12,'Classroom 4',35,1);
INSERT INTO ClassRooms VALUES(13,'Classroom 5',35,1);
INSERT INTO ClassRooms VALUES(14,'Classroom 6',25,1);
INSERT INTO ClassRooms VALUES(15,'Classroom 7',25,1);
INSERT INTO ClassRooms VALUES(16,'Classroom 8',24,1);
INSERT INTO ClassRooms VALUES(17,'Classroom 9',24,1);
INSERT INTO ClassRooms VALUES(18,'Control Sys Lab',24,1);
INSERT INTO ClassRooms VALUES(19,'Dig & Embd Sys Lab',20,1);
INSERT INTO ClassRooms VALUES(20,'DSP & Comm Lab',20,1);
INSERT INTO ClassRooms VALUES(21,'Electromechanical System Lab',28,1);
INSERT INTO ClassRooms VALUES(22,'Farabi/Web Tech Lab',36,1);
INSERT INTO ClassRooms VALUES(23,'Gen Purpose Lab',40,1);
INSERT INTO ClassRooms VALUES(24,'Shirazi/DB Tech Lab',36,1);
INSERT INTO ClassRooms VALUES(25,'Adv Elect Lab',30,2);
INSERT INTO ClassRooms VALUES(26,'Classroom 16',42,2);
INSERT INTO ClassRooms VALUES(27,'Classroom 17',49,2);
INSERT INTO ClassRooms VALUES(28,'Classroom 18',56,2);
INSERT INTO ClassRooms VALUES(29,'Classroom 19',42,2);
INSERT INTO ClassRooms VALUES(30,'Classroom 20',49,2);
INSERT INTO ClassRooms VALUES(31,'Classroom 21',35,3);
INSERT INTO ClassRooms VALUES(32,'Classroom 22',35,3);
INSERT INTO ClassRooms VALUES(33,'MDA Lab',20,3);

CREATE TABLE DegreeBatches (BatchId NUMBER, BatchName VARCHAR2(50), Strength NUMBER);
INSERT INTO DegreeBatches VALUES(1,'BIT-11',79);
INSERT INTO DegreeBatches VALUES(2,'BIT-12',28);
INSERT INTO DegreeBatches VALUES(3,'BS(CS)-1',35);
INSERT INTO DegreeBatches VALUES(4,'BS(CS)-2',78);
INSERT INTO DegreeBatches VALUES(5,'BE(SE)-1',69);
INSERT INTO DegreeBatches VALUES(6,'BE(SE)-2',84);
INSERT INTO DegreeBatches VALUES(7,'BE(SE)-3',64);
INSERT INTO DegreeBatches VALUES(8,'BICSE-7',84);
INSERT INTO DegreeBatches VALUES(9,'BICSE-8',43);
INSERT INTO DegreeBatches VALUES(10,'BEE-1',112);
INSERT INTO DegreeBatches VALUES(11,'BEE-2',151);
INSERT INTO DegreeBatches VALUES(12,'BEE-3',157);
INSERT INTO DegreeBatches VALUES(13,'BEE-4',157);

Best Regards
Bilal

Edited by: Bilal on 27-Dec-2012 09:52

Edited by: Bilal on 27-Dec-2012 10:07