JET_ERR JET_API JetRetrieveColumn(
  __in          JET_SESID sesid,
  __in          JET_TABLEID tableid,
  __in          JET_COLUMNID columnid,
  __out_opt     void* pvData,
  __in          unsigned long cbData,
  __out_opt     unsigned long* pcbActual,
  __in          JET_GRBIT grbit,
  __in_out_opt  JET_RETINFO* pretinfo
);
 

 
DECLARE INTEGER JetRetrieveColumn IN esent;
    INTEGER sesid,;
    INTEGER tableid,;
    INTEGER columnid,;
    INTEGER pvData,;
    LONG cbData,;
    LONG @pcbActual,;
    INTEGER grbit,;
    INTEGER pretinfo