Handling between in Case

Question

Hi All,
How to handle between in Case?
(case emp_type
* when between 1 and 3 then '01'*
* when between 2 and 4 then '04'*
* when between 4 and 5 then '05'*
* end*
above statement is giving error.
one way is:
(case emp_type
when emp_type between 1 and 3 then '01'
when emp_type between 2 and 4 then '04'
when emp_type between 4 and 5 then '05'
end
Any other solutions ?
Thanks.

Answer 1

Are you using SQL or PL/SQL?
Your example isn't working in SQL...
Your example looks like some mix?
Can you post some sample data?
MHO%xe> with emp as
  2  (select 1 emp_type from dual union all
  3   select 2 emp_type from dual union all
  4   select 3 emp_type from dual union all
  5   select 4 emp_type from dual union all
  6   select 5 emp_type from dual
  7  )
  8  --- actual query starts here
  9  select (case
10          when emp_type between 1 and 3 then '01'
11          when emp_type between 2 and 4 then '04'
12          when emp_type between 4 and 5 then '05'
13          end )
14  from emp       
15  ;
(C
01
01
01
04
05
5 rijen zijn geselecteerd.
MHO%xe> with emp as
  2  (select 1 emp_type from dual union all
  3   select 2 emp_type from dual union all
  4   select 3 emp_type from dual union all
  5   select 4 emp_type from dual union all
  6   select 5 emp_type from dual
  7  )
  8  --- actual query starts here
  9  select (case emp_type  -->> Gives Error
10          when emp_type between 1 and 3 then '01'
11          when emp_type between 2 and 4 then '04'
12          when emp_type between 4 and 5 then '05'
13          end )
14  from emp;
        when emp_type between 1 and 3 then '01'
FOUT in regel 10:
.ORA-00905: missing keywordhttp://download.oracle.com/docs/cd/B19306_01/server.102/b14200/expressions004.htm#sthref2637
PL/SQL
MHO%xe> begin
  2  for rec in
  3  (
  4  with emp as (select 1 emp_type from dual union all
  5               select 2 emp_type from dual union all
  6               select 3 emp_type from dual union all
  7               select 4 emp_type from dual union all
  8               select 5 emp_type from dual
  9              )
10             --- actual query starts here
11             select *
12             from   emp       
13  )
14  loop
15     case
16     when rec.emp_type between 1 and 3 then dbms_output.put_line('01');
17     when rec.emp_type between 2 and 4 then dbms_output.put_line('04');
18     when rec.emp_type between 4 and 5 then dbms_output.put_line('05');
19     end case;
20  end loop;
21  end;
22  /
01
01
01
04
05
PL/SQL-procedure is geslaagd.http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14261/case_statement.htm#LNPLS01304
Edited by: hoek on May 17, 2009 3:34 PM adds doc links