LuaTeX/ConTeXt connect to SQL Server

[Matt Baker <pragmatic.inc@gmail.com>]

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FROM MY POSTING AT:
http://tex.stackexchange.com/questions/180018/luatex-context-connect-to-sql-server?noredirect=1#comment415824_180018

I am looking to connect ConTeXt to a SQL Server database. I have looked
through the manuals, and even read pragma-ade's SQL PDF (which, for me,
seems a bit abstract). I am not extremely familiar with Lua but have read
up on the language (I am more familiar with JS). For LaTex I used nlatexdb
which did the trick, but LaTex isn't able to do what ConTeXt can.

   -

   The connection needs to use Windows Authentication.
   -

   The document is set up as a letter with an environment that it pulls
   from.
   -

   It would be preferable to have the connection and queries be seperate
   from the letter itself, and be able to place variables into the letter that
   can be populated through the queries (much like nlatexdb) if possible.
   - example: Dear ??first ??last, Thank you for your interest in
      ??product... etc.

I am rather new to ConText and just starting to get the hang of it, long
time latex user, the transition starts off rather confusing, but once it
makes sense it opens up a whole toolbox of available tools which is great.
Just need this one last tool.

Any help would be much appreciated.

EDIT:: Honestly I haven't gotten to any point that I felt I could attempt
trying the connection. Looking at the SQL PDF from pragma-ade it should
look something like:

    local presets = {
    server = "XXX\XXX",
    Database = "Customer",
    Integrated Security = "True",
    }
    presets.id = "XXX"
    local template = [[
    SELECT
    'Control_Content'
    FROM
    'Customer.dbo.Report_Client_Data'
    WHERE
    'Control_Name' LIKE 'Long_Name' AND 'Client_Id' = 154;
     ]]

    local data, keys = utilities.sql.execute {
    presets = presets,
    template = template,
    variables = {},
    }

I can't seem to find where or how the connection is being made, except
perhaps where utilities.sql.execute is called, but I can't find any
information anywhere about such a call in lua or context...

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