×
The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.
Well, here's another. I have an SQL statement that looks like this:
C/Exec SQL
C+ DECLARE C1 CURSOR FOR
C+ Select * From MYFILE
C+ Where Imfld1 Between :HostFld1 and :HostFld2
C+ And Imfld2 Between :HostFld3 and :HostFld4
C+ And Imfld3 Between :HostFld15 and :HostFld16
C+ And Imfld4 Between :HostFld17 and :HostFld18
C+ Order By Case When :DspSort = 1 Then Imfld1 Else NULL End,
C+ Case When :DspSort = 1 Then Imfld2 Else NULL End
C+ For Read Only
C/End-Exec
This is a simple example - some are more complex (as in more
comparisons). Using the Between clause is great with high and low
values, but it can be very slow. How do I attack a problem like this?
How do I know what indexes or views or whatever to make? Do I even
want to do that? I know this is incomplete information, but I have to
start somewhere.
Cross posted since it's RPG but it's SQL in nature.
Thanks!
As an Amazon Associate we earn from qualifying purchases.
This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact
[javascript protected email address].
Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.
midrange.com
