Question

oracle has a nice built in function for doing if null, however I want to do if = 0; is there a simple way to do this?

nvl(instr(substr(ovrflo_adrs_info,instr(ovrflo_adrs_info,’bldg’)+5),’ ‘),
length(substr(ovrflo_adrs_info,instr(ovrflo_adrs_info,’bldg’)+5))))

This is going as a parameter to a substr function.

If instr(substr(ovrflo_adrs_info,instr(ovrflo_adrs_info,'bldg')+5),' ') is != 0 then I want that value, otherwise I want the value of length(substr(ovrflo_adrs_info,instr(ovrflo_adrs_info,'bldg')+5))

is there an easy way to do this?

Answer 1

I think you’ll need to use CASE

e.g.

WHEN instr(substr(ovrflo_adrs_info,instr(ovrflo_adrs_info,'bldg')+5),' ') != 0 THEN
  length(substr(ovrflo_adrs_info,instr(ovrflo_adrs_info,'bldg')+5))
ELSE
   Some Default
END as foo