SQL Query converted to PL/SQL?

Question

I am trying to get my sql query here (which works) converted over to a pl/sql function so I can use an IF / THEN statement to determine whether my 2nd search field has been submitted with something in it.
My current query:
select
     comm_Devices.ID,
     comm_Devices.PhonePager,
     comm_Devices.FirstName,
     comm_Devices.LastName,
     comm_Devices.Vendor,
     comm_DeviceType.Device,
     comm_Devices.PhoneNo,
     comm_Devices.Location,
     comm_Vendors.VendorName
from comm_Devices
     Inner Join comm_DeviceType
          on comm_Devices.DeviceTypeID = comm_DeviceType.ID
     Inner Join comm_Vendors
          on comm_Vendors.vendorId = comm_Devices.vendor
     where
comm_Devices.LastName LIKE '%' || upper(:P1_SEARCH_LAST_NAME) || '%'
and comm_Vendors.VendorName LIKE '%' || upper(:P1_SEARCH_VENDOR) || '%'
What I am wanting to do is convert it to pl/sql so I can do this:
if :P1_SEARCH_VENDOR != '' then
q:=q||'and comm_Vendors.VendorName LIKE '%' || upper(:P1_SEARCH_VENDOR) || '%';
end if;
Any help would be greatly appreciated!

Answer 1

You are fairly close to figuring this out. Basically you want to create a Quesry Region of type :SQL Query (Pl/SQL Function Body Returning Sql Query).
Then as most of the Dynamic query examples shouw you would do something like
declare
q varchar2(32767); -- query
w varchar2(4000); -- where clause
we varchar2(1) :='N'; -- identifies if where clause exists
begin
q := 'select "comm_Devices"."ID", ' ||
' "comm_Devices"."PhonePager", ' ||
' "comm_Devices"."FirstName",' ||
' "comm_Devices"."LastName", ' ||
' from "comm_Devices" ' ||
' Inner Join "comm_DeviceType" on "comm_Devices"."DeviceTypeID" = "comm_DeviceType"."ID" ' ||
' Inner Join "comm_Vendors" on "comm_Vendors"."vendorId" = "comm_Devices". "vendor" ';
if :P1_SEARCH_VENDOR != '' then
w := "where statement";
we := 'Y';
END IF;
IF we = 'Y' THEN
q := q || w;
END IF;
return q;
end;
This should get you started.
James
Message was edited by:
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