title: Combine and store multiple SQL columns into a single column programmatically
body: <p>I have multiple columns in an Access DB, I want to combine the fields A, B, C and store them in column D with a comma separator between them.  D = A,B,C.  </p>
  
  <p>Right now I am using a OleDbConnection, but I'm open to other methods.  How can I combine and store the row data from multiple SQL columns into a single column?  </p>