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  1.  Home
  2. RPG400-L
  3. October 2015

Re: AW: Syntax for Insert into using an rpg data structure, 1 row


Declare MyCursor Cursor For
Select ...
From ...
Where Column1 = Case when :HostInput1 <> 0 then :HostInput1 Else
Column1 End
And Column2 = Case When :HostInput <> '' then :HostInput2 Else
Column2 End
And Column3 > '2000-01-01' Then :HostInput3 else Column3 End
....
Order By Case When :Sort = 1 Then Column1 End, Case When :Sort = 1
Then
Column4 End


I've discovered a little trick as an alternative to the case statement for
equal type comparisons. It reverses the traditional usage of host
variables. Here is the statement rewritten as an example:

Declare MyCursor Cursor For
Select ...
From ...
Where :HostInput1 in (0,Column1)
and :HostInput2 in (' ', Column2)


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