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xbasic query table by variable to return T if found F if not

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  • xbasic query table by variable to return T if found F if not

    I have some xbasic code that i would like to query a table and if found do something or end if

    cty contains the value of a city. and i want to check to see if it's found on table cities

    the table cities only has one field and it is city.

    example:

    Code:
    dim cty as C
    cty="tampa"
    tbl=table.open("cities")
    'just an idea here 
    
    results=tbl.query(cty) 'all i need to know is if it returns as finding the city
    if results = .T. then 
    ktbl=table.open("keep")
    ktbl.enter_begin()
    ktbl.name = var1
    ktbl.city = cty
    ktbl.enter_end(.t)
    ktbl.close
    end if
    can't seem to find just what im looking for in the help files
    https://www.housingeducator.org
    k3srg

  • #2
    Re: xbasic query table by variable to return T if found F if not

    Hi, Steven.

    If you have an index on the City field you can use the EXIST() function. Check this discussion in the helps.

    Comment


    • #3
      Re: xbasic query table by variable to return T if found F if not

      tom your awsome i think this is what i need will test in full script just tried in the interactive window seems correct
      https://www.housingeducator.org
      k3srg

      Comment


      • #4
        Re: xbasic query table by variable to return T if found F if not

        it seems to work up untill i get the error max number of open tables allowed. how would i do a table.close() on that function?
        https://www.housingeducator.org
        k3srg

        Comment


        • #5
          Re: xbasic query table by variable to return T if found F if not

          You don't need a close() with that function.

          Show us the whole of the code you are using.
          There can be only one.

          Comment


          • #6
            Re: xbasic query table by variable to return T if found F if not

            Code:
            dim scrape as C
            scrape=""
            ltbl=table.open("leads")
            scrape=reslts1
            dim nstrt as C
            nstrt = "<a href"
            dim nstp as C
            nstp = "</a>"
            cname = extract_string(scrape,nstrt,nstp,1,.T. )
            dim astrt as C
            dim astop as C
            astrt = "street-address\">" 
            astp = ","
            addy = extract_string(scrape,astrt,astp,1 )
            addy = REMOVE_BLANK_LINES(addy)
            dim cstrt as C
            dim cstp as C
            cstrt = "locality\">"
            cstp = "<"
            cty = extract_string(scrape,cstrt,cstp,1 )
            dim sstrt as C
            dim sstop as C
            sstrt = "region\">"
            sstp = "<"
            state = extract_string(scrape,sstrt,sstp,1 )
            dim zstrt as C
            dim zstop as C
            zstrt = "postal-code\">"
            zstp = "<"
            zcode = extract_string(scrape,zstrt,zstp,1 )
            pstrt = "business-phone phone\">"
            pstp = "<"
            bphone = extract_string(scrape,pstrt,pstp,1 )
            
            bphone = strtran(bphone,"-","")
            
            bphone = strtran(bphone,"(","")
            
            bphone = strtran(bphone,")","")
            
            bphone = strtran(bphone," ","")
            bphone = REMOVE_BLANK_LINES(bphone)
            
            result= exist(cty,"ohcities","City")
            if result = .T. then  
            ltbl.enter_begin()
            ltbl.name = *HTML_TO_PLAIN(cname)
            ltbl.Address = addy
            ltbl.City = cty
            ltbl.State = state
            ltbl.Zip = zcode
            ltbl.Phone = bphone
            ltbl.enter_end(.t.)
            ltbl.close()
            end if
            Its a script for screen scraping it works just trying to weed out leads that i don't want before it writes them makes it easier to sort thru. There is 30 per page scraped and can be several thousand as it loops through pages
            https://www.housingeducator.org
            k3srg

            Comment


            • #7
              Re: xbasic query table by variable to return T if found F if not

              This adjustment will close the leads table whether or not the result is .T., which should be what you want.

              Code:
              if result = .T. then
              	ltbl.enter_begin()
              	ltbl.name = *HTML_TO_PLAIN(cname)
              	ltbl.Address = addy
              	ltbl.City = cty
              	ltbl.State = state
              	ltbl.Zip = zcode
              	ltbl.Phone = bphone
              	ltbl.enter_end(.t.)
              end if
              ltbl.close()
              There can be only one.

              Comment


              • #8
                Re: xbasic query table by variable to return T if found F if not

                Thank you stan that solved it.
                https://www.housingeducator.org
                k3srg

                Comment

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