Sql to nav page(Microsoft Dynamics NAV)

I have a sql statement and my client runs this sql monthly basis and he decided that he wants this in nav. I created a temp page and a report for them to enter a date range(request page) then I want to display but I can't display the way I want.

for example here my sql statement

dbo.[Companyname$Purch_ Inv_ Line].No_ LIKE '122350%' OR
dbo.[Companyname$Purch_ Inv_ Line].No_ LIKE '122370%' OR
dbo.[Companyname$Purch_ Inv_ Line].No_ LIKE '7%')

My solution is

IF PurchInvLine.FINDSET THEN
      REPEAT
      IF (Type = Type::"G/L Account") AND 
        ((COPYSTR("No.",1,6) IN ['122350', '122370']) OR // Problem is here I know. If I don't have anything here I can display everything
         (COPYSTR("No.",1,1) = '7'))
      BEGIN
          // Populate Temp Table //
          Rec := PurchInvLine;
          INSERT;
        END;
      UNTIL PurchInvLine.NEXT = 0;
  UNTIL PurchInvHeader.NEXT = 0;

I can do the rest but I can't filter properly. What am I missing? I am a beginner btw