Case when null statement

Question

Afternoon Folks,
The line highlighted in Bold is where I have the issue. I want it to pick up NULL or Blanks in the method type has well as types E,G,T. I've tried NULL is the statement, "", and '' put none of these work. What am I doing wrong? I'm using 11g by the way
select specialty,
member_id,
sp_id,
service_date,
sum(case when method_type = 'C' then (payment_total) end) "CONSULTATION",
sum(case when method_type = 'M' then (payment_total) end) "MOT",
sum(case when method_type = 'D' then (payment_total) end) "TESTS",
sum(case when method_type in ('E','G','T') then (payment_total) end) "OTHER",
sum(payment_total) "TOTAL"
from a3_fact_sms_service_inv
where specialty in ('Chiropody','Podiatry')
and service_date between date '2011-01-01' and date '2011-12-31'
group by specialty,
member_id,
sp_id,
service_date
order by specialty,
member_id,
sp_id,
service_date

Answer 1

957099 wrote:
Afternoon Folks,
The line highlighted in Bold is where I have the issue. I want it to pick up NULL or Blanks in the method type has well as types E,G,T. I've tried NULL is the statement, "", and '' put none of these work. What am I doing wrong? I'm using 11g by the way
select specialty,
member_id,
sp_id,
service_date,
sum(case when method_type = 'C' then (payment_total) end) "CONSULTATION",
sum(case when method_type = 'M' then (payment_total) end) "MOT",
sum(case when method_type = 'D' then (payment_total) end) "TESTS",
sum(case when method_type in ('E','G','T') then (payment_total) end) "OTHER",
sum(payment_total) "TOTAL"
from a3_fact_sms_service_inv
where specialty in ('Chiropody','Podiatry')
and service_date between date '2011-01-01' and date '2011-12-31'
group by specialty,
member_id,
sp_id,
service_date
order by specialty,
member_id,
sp_id,
service_dateWell, effectively the in is like saying method_type = 'E' or method_type = 'G' or method_type = 'T'
and so trying null as well in the in-list would be ...or method_type = null which won't work
as null isn't equal (nor not equal) to null.
so you could try
sum(case when method_type in ('E','G','T') or method_type is null then (payment_total) end) "OTHER",or use nvl
sum(case when nvl(method_type,'X') in ('E','G','T','X') then (payment_total) end) "OTHER",where 'X' is a value you definitely don't (and won't) use as a real value in method_type.
(Not tested as you didn't provide create table statements or inserts of test data).