Assign columns
In the data source explorer, you can copy a table by dragging-and-dropping the table onto the table container. If you mark the Attach data check box on the first page of the Copy table dialogue box, the Assign columns dialogue box opens as the second window. You can use this dialogue box to map the content of a data field in the source table to a different data field in the destination table.
Source table
Lists the data fields in the source table. To include a data field from the source table in the destination table, mark the check box in front of the data field name. To map the content of a data field in the source table to a different data field in the destination table, click the data field in the source table list, and then click the up or down arrow. To include all of the source data fields in the destination table, click All.
Destination table
Lists the possible data fields in the destination table. Only the data fields that are selected in the source table list will be included the destination table.
up
Moves the selected entry up one position in the list.
down
Moves the selected entry down one position in the list.
all
Selects all of the data fields in the list.
none
Clears all of the check boxes in the list.