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SQL cn.ResultSet error

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    SQL cn.ResultSet error

    I have been exclusively working with .dbf tables and have become moderately successful with using xbasic to access .dbf tables reading and writing data to these.

    I now have a need to access data tables from out accounting system which uses SAGE MAS200 ODBC tables.

    I have successfully made a working connection string and now need to work within the Xbasic area to select data from these tables. After hours of trial and error and using the Alpha video training I was making progress to understanding SQL but I have hit a snag.

    The code below shows and error I am getting while just trying to extract some basic data from a table. Can anyone spot what I have done wrong as I have tried for several hours now to figure it out without success.

    CODE-------------------------

    dim cn as sql::connection
    flag = cn.Open("::Name::Sage")
    dim sqlCommand as c
    Dim args as SQL::Arguments
    args.set("whatcode","ADV07")
    sqlCommand = "Select CustomerName, SalespersonNo from ar_customer WHERE CustomerNo = :whatcode "
    flag = cn.execute(sqlCommand,args)
    dim rs as sql::ResultSet
    rs = cn.ResultSet
    ERROR: No result set is available while getting latest result set.'
    cn.ResultSet subelement not found.


    End CODE ------------------------------------

    Thanks in advance for your time

    Steve Kent

    #2
    Re: SQL cn.ResultSet error

    What is the result of flag after cn.execute? If .f., then you should check cn.callresult.text to see what went wrong. You may have an error in your sqlCommand:

    Code:
    if (cn.execute(sqlCommand,args) <> .t.) then
        ' an error has occurred 
        ' look at value of cn.callresult.text
    end if
    Alpha Anywhere latest pre-release

    Comment


      #3
      Re: SQL cn.ResultSet error

      using
      ?flag
      I get
      = .T.

      Comment


        #4
        Re: SQL cn.ResultSet error

        Also

        value of cn.callresult.text
        ERROR: Missing or invalid Keyword

        Comment


          #5
          Re: SQL cn.ResultSet error

          Originally posted by SteveK3003 View Post
          Also

          value of cn.callresult.text
          ERROR: Missing or invalid Keyword
          Is portableSQL enabled or disabled? I have never worked with your DBMS before, but I am wondering if "SELECT CustomerName, SalespersonNo FROM ar_customer WHERE CustomerNo = 'ADV07' " works if you run it directly on the DB instead of through Alpha 5.
          Alpha Anywhere latest pre-release

          Comment


            #6
            Re: SQL cn.ResultSet error

            Explain PortableSQL please. Is this something enabled from within Alpha5 or is this something that must be set on the SQL server?

            Steve

            Comment


              #7
              Re: SQL cn.ResultSet error

              OK, Now I am getting a .F. indicator on the ?flag after the
              flag = cn.execute(sqlCommand,args) statement

              I swear this was true earlier.
              Still not understanding why

              Comment


                #8
                Re: SQL cn.ResultSet error

                cn.portableSqlEnabled is a property of a sql::connection object: http://wiki.alphasoftware.com/~alpha...nection+Object

                Default = FALSE (.F.). When this property is set to true, SQL statements passed to the ApplyData(), Execute(), ToOpenTable(), ToGridComponentDataObject(), ToOpenTable(), ToPropertyArray(), ToString(), ToXML(), and ValidateQuery() methods are checked to see if they are supported Portable SQL Statements and, if so, then translated to native syntax before being processed. Statements that are not supported are passed directly through to the underlying database driver as if PortableSQLEnabled were false.
                Since you're not explicitly setting cn.portableSqlEnabled, I'll assume it's false.

                Alpha has a set of Portable SQL Syntax. Here's more information on the subject:
                http://wiki.alphasoftware.com/Portable%20SQL
                http://wiki.alphasoftware.com/~alpha...ble+SQL+Syntax
                Alpha Anywhere latest pre-release

                Comment


                  #9
                  Re: SQL cn.ResultSet error

                  Originally posted by SteveK3003 View Post
                  OK, Now I am getting a .F. indicator on the ?flag after the
                  flag = cn.execute(sqlCommand,args) statement

                  I swear this was true earlier.
                  Still not understanding why
                  Assuming cn.open(...) returned true, this usually means there's a problem with your SQL syntax.
                  Alpha Anywhere latest pre-release

                  Comment


                    #10
                    Re: SQL cn.ResultSet error

                    I have added the portableSQLEnable command in and even streemlined the SQL statement and still get the error.

                    Any additional thoughts?

                    Steve

                    New Code------------------------------------------------->

                    dim cn as sql::connection
                    flag = cn.Open("::Name::Sage")
                    ?flag
                    = .T.

                    cn.PortableSQLEnabled =.t.
                    dim sqlCommand as c
                    Dim args as SQL::Arguments
                    sqlCommand = "Select * from ar_customer"
                    flag = cn.execute(sqlCommand)
                    ?flag
                    = .T.

                    dim rs as sql::ResultSet
                    rs=cn.ResultSet
                    ERROR: No result set is available while getting latest result set.'
                    cn.ResultSet subelement not found.

                    Comment


                      #11
                      Re: SQL cn.ResultSet error

                      Does ar_customer contain data?
                      Alpha Anywhere latest pre-release

                      Comment


                        #12
                        Re: SQL cn.ResultSet error

                        Frustration is creeping up

                        I seem to have a strange connection to the ODBC datatables. One minute it works and the next I get an error

                        dim cn as sql::connection
                        flag = cn.Open("::Name::Sage")
                        ?flag
                        = .F. <---- now returning false.

                        When I run a query though the SQL gene Things seem to work fine and I see the one row of data that I am after.

                        Comment


                          #13
                          Re: SQL cn.ResultSet error

                          hello

                          dim cn as sql::connection
                          flag = cn.Open("::Name::Sage")
                          dim sqlCommand as c
                          Dim args as SQL::Arguments
                          args.set("whatcode","ADV07")
                          sqlCommand = "Select CustomerName, SalespersonNo from ar_customer WHERE CustomerNo = :whatcode "
                          flag = cn.execute(sqlCommand,args)
                          dim rs as sql::ResultSet
                          rs = cn.ResultSet
                          Code:
                          debug(1)
                          dim cn as sql::connection
                          dim args as sql::arguments
                          dim sqlCommand as c
                          dim result as l 
                          result = cn.open("::Name""Sage")
                          if result
                                  sqlCommand = "SELECT CustomerName, SalespersonNo FROM ar_customer WHERE customerNo = :whatcode"
                                  args.set("whatcode", "ADV07")
                                   result = cn.execute(sqlCommand, args)
                                   if result
                                        dim rs as sql::resultset
                                        rs = cn.resultset
                                        dim flag as l
                                        flag = rs.nextRow()
                          
                          
                          
                                   end if
                          
                          end if
                          i rewrote your code from first post
                          if you test it in working preview it will show if there were any mistakes, you can step thru each line then see.
                          thanks for reading

                          gandhi

                          version 11 3381 - 4096
                          mysql backend
                          http://www.alphawebprogramming.blogspot.com
                          [email protected]
                          Skype:[email protected]
                          1 914 924 5171

                          Comment


                            #14
                            Re: SQL cn.ResultSet error

                            Probably want to replace "" with :: in "::Name""Sage":

                            Originally posted by GGandhi View Post
                            Code:
                            debug(1)
                            dim cn as sql::connection
                            dim args as sql::arguments
                            dim sqlCommand as c
                            dim result as l 
                            result = cn.open("::Name[B][B][COLOR="#FF0000"]::[/COLOR][/B][/B]Sage")
                            if result
                                    sqlCommand = "SELECT CustomerName, SalespersonNo FROM ar_customer WHERE customerNo = :whatcode"
                                    args.set("whatcode", "ADV07")
                                     result = cn.execute(sqlCommand, args)
                                     if result
                                          dim rs as sql::resultset
                                          rs = cn.resultset
                                          dim flag as l
                                          flag = rs.nextRow()
                            
                            
                            
                                     end if
                            
                            end if
                            i rewrote your code from first post
                            if you test it in working preview it will show if there were any mistakes, you can step thru each line then see.
                            Alpha Anywhere latest pre-release

                            Comment


                              #15
                              Re: SQL cn.ResultSet error

                              Gandhi

                              Thank you for your help

                              I did as you indicated but got no results. in Debug mode the execution skips over everything from if result on. Not sure if there is an error in you if statement but I don't see result being tested.

                              I did check the value of result and it returned .F.

                              Steve

                              Comment

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