Data File Columns vs Database Table Columns

After a file is selected, the list of data fields from the file is placed in the list view under the heading Field From File.

If an existing database table is selected, the list of column names from the database table is placed in the list view under the heading Database Column. The data file fields and database columns are matched up. Data file fields that do not have a corresponding database column have an attached note indicating that the "Database column is missing". Columns in the database table that do not have a corresponding data file field have a note indicating that the "Column does not exist in file".