How to achieve the results by Query ??

Question

Hello Guys,
I have couple tables which I need to join to get the result....This is what is in the tables...
CList Table
CID, Name
A, ABC
B,CDE
C,JFK
JList Table
JID, Name
1, Something
2, Another
3, Else
4, Should be something
JOb_2_Courses
JobID, CourseID
1,A
1,B
2,C
Employee Table
EID, Job_ID
1A, 1
2A,1
3B,1
2C,2
23D,3
CStatus Table
StatusID, Desc
1,Completed
2,Pending Approval
3,Declined
4,Scheduled
5,Register
Now user can only register the course which are related with their job....NO course else.....
When they register it is moved to temp_course_registration and then once completed to COURSE_HISTORY
For Example : So Employee : 1A will see two courses to register A and B...
Say he registers A....it makes an entry in temp_course_registration table with the course id, employeeid and date....
With further steps once that status is updated to '1'.....the course is deleted from temp_course_registration and is moved to course_history........
Now to show to the user...I need to include all my tables in the query and on the basis of status, show necessary things to the user....
Output :
Course_ID, Status.............
Say if they completed the course will come from course_history, if in the process will come from temp_course_registration.....if nothing is in the tables for the specific employee...this means status is '5' and they need to register everything...
Can someone let me know, how to achieve the results....
Thanks,
Harsimrat

Answer 1

Hello
I'm off home now so I can't look at the query, but for future reference, if you want to improve your chances of getting help, you need to provide simple create table statements, and test data to go with it. I've done that with what you provided and hopefully someone else will be able to help. Also, you were asked if you could provide this in your other thread...
CREATE TABLE CList(CID varchar2(1), Name varchar2(3))
insert into clist values('A', 'ABC');
insert into clist values('B','CDE');
insert into clist values('C','JFK');
CREATE TABLE JList(JID number, Name varchar2(30))
insert into jlist values(1, 'Something');
insert into jlist values(2, 'Another');
insert into jlist values(3, 'Else');
insert into jlist values(4, 'Should be something');
CREATE TABLE JOb_2_Courses(JobID number, CourseID varchar2(1))
insert into job_2_courses VALUES(1,'A');
insert into job_2_courses VALUES(1,'B');
insert into job_2_courses VALUES(2,'C');
CREATE TABLE Employee (EID varchar2(3), Job_ID number)
INSERT INTO employee VALUES('1A', 1);
INSERT INTO employee VALUES('2A',1);
INSERT INTO employee VALUES('3B',1);
INSERT INTO employee VALUES('2C',2);
INSERT INTO employee VALUES('23D',3);
CREATE TABLE CStatus(StatusID number, Descr varchar2(30))
insert into cstatus values(1,'Completed');
insert into cstatus values(2,'Pending Approval');
insert into cstatus values(3,'Declined');
insert into cstatus values(4,'Scheduled');
insert into cstatus values(5,'Register');HTH
David