How to Simultaneously Bind Columns to Formats and Informats

A column can be bound with both a format and an informat simultaneously. To perform this task, set the ulExtension member of the DBBINDEXT to 2, and set the pExtension to the address of an array of two SASFORMAT structures. One of the structures in this array should define the format to apply and the other structure should define the informat.
CAUTION:
The SAS providers do not validate that formats and informats are paired logically on the same column binding.
The providers also do not prevent you from binding the same column more than once per accessor, nor do they prevent you from using that accessor on output operations. If you use an accessor in this way and if the accessor you use is not consistent with the operation being performed, you might receive data integrity errors.