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table.external_record_content_get ~ for sql

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    table.external_record_content_get ~ for sql

    Is there an similar command for "table.external_record_content_get()" in MySql with out using Active Link tables?

    It works if I use Active Link tables, but I would like to get away from using Active Link tables.

    So is there another command to use for MySql?

    Thanks,
    Dan
    Dan

    Dan Blank builds Databases
    Skype: danblank

    #2
    Re: table.external_record_content_get ~ for sql

    If you're wanting to get away from active link tables and address your SQL database directly, then you should check out this tutorial: http://wiki.alphasoftware.com/Learni...20SQL%20Tables

    I think sql_records_get gets pretty darn close. Additionally, the SQL::Connection object has a variety of functions that will put your sql query results into a more manageable format, including JSON, property arrays, and strings. It can be a bit tedious to write out the SQL to query your table, but I find it easier to get exactly what I want executing my own queries over trying to use functions like sql_records_get and sql_lookup.

    Hope that helps you out! Good luck. :)
    ---
    Sarah
    Alpha Anywhere latest pre-release

    Comment


      #3
      Re: table.external_record_content_get ~ for sql

      Depends on what you are looking for.
      If you are looking for a single value then you can use the built in 'sql_lookup' command
      I have a table called district which, among other things has the district code and district name. So if I wanted the district name for a code I could do this:

      ?sql_lookup("::name::yourconnectionname","district","district='ho'","districtname")
      = "Houston"

      I wrote a small "table.external_record_content_get()" substitute for mysql that looks like this:

      FUNCTION sql_table_content AS C (table AS C, field AS C, filter AS C )
      dim cn as SQL::Connection
      cn.open("::name::ourconnectionname")
      dim qry as c
      if filter = "" then
      qry = "SELECT "+ field + " FROM " + table
      else
      qry = "SELECT "+ field + " FROM " + table + " WHERE " + filter
      end if

      cn_result = cn.Execute(qry)
      sql_table_content = cn.ResultSet.ToString()
      cn.Close()
      END FUNCTION

      So using this new function I can do this: (note the filter is blank is this example)
      ?sql_table_content("district","district, districtname","")
      = AD Administration
      AU Austin
      DA Dallas
      HO Houston
      LV Las Vegas
      PH Phoenix
      QQ Test District

      Another example (this one includes a filter and I included the pipe symbol to separate the columns)
      ?sql_table_content("svc_type","typename, ' | ', rpt_1099","billing=1")
      = Admin | T
      Cleaning | T
      Drywall | T
      Maintenance | T
      Painting | T
      Shampoo | T

      The difference between the 2 commands is that the built in sql_look-up only gives the first value it finds and only the first column. The function I built gives all values that fit the filter and allows multiple columns.

      Mike
      Mike Reed
      Phoenix, AZ

      Comment


        #4
        Re: table.external_record_content_get ~ for sql

        Or, something like this:

        Code:
        cn = "::name::conn"
        table = "Facilities"
        filter = "Comp_id = " + convert_type(session.comp_ID, "N")
        result = "concat(Facility, '|', Fac_ID)"
        
        List_Facilities_Co = sql_get_values(cn, table, filter, result)
        -Steve
        sigpic

        Comment


          #5
          Re: table.external_record_content_get ~ for sql

          Originally posted by Mike Reed View Post
          The difference between the 2 commands is that the built in sql_look-up only gives the first value it finds and only the first column. The function I built gives all values that fit the filter and allows multiple columns.
          sql_lookup(conn,table,filter,result_expression,arguments,flagReturnAllValues)

          Not so. If you pass in .t. for flagReturnAllValues, you get more than one result. The catch is that you have to specify a filter that is not empty/null, otherwise you get an error. At least, I get an error. This is potentially something I should report to alpha maybe.

          Additionally, you can specify multiple columns for the return_expression with commas. EG:
          Code:
          result = sql_lookup("::Name::conn","my_table","1=1","FIELD_NAME",0,.t.)
          
          'Multi-column
          resultMultiColumn = sql_lookup("::Name::conn","my_table","1=1","FIELD_1, FIELD_2, FIELD_3",0,.t.)
          sql_lookup returns a crlf() delimited string of records if you get more than one value back. If you have multiple fields, they are separated by spaces.
          Last edited by TheSmitchell; 11-09-2013, 02:40 PM.
          Alpha Anywhere latest pre-release

          Comment


            #6
            Re: table.external_record_content_get ~ for sql

            Thank you everyone! Some good ideas here. I appreciate the help.

            Thanks again!
            Dan
            Dan

            Dan Blank builds Databases
            Skype: danblank

            Comment

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