The SAS/ACCESS Interface to ODBC product may return incorrect values for 
DBMS tables with multiple DATE columns.  Any row which has a NULL value in a
DATE column will cause any subsequent DATE column in that row to be          
interpreted incorrectly.  
 
This problem will occur when querying data with the PROC SQL Pass-Through 
(this includes the Query window).   It can also occur with the new LIBNAME
engine if you have specified ROWSET_SIZE=0 on your LIBNAME statement (this is NOT the default value).                     

You can download a module from the SAS web site that will address this  
problem for SAS Version 7.  The new module and README can be found at:

   http://www.sas.com/techsup/download/maint/access/odbc/SOL2/7.00

The files you will need to download in BINARY format are:      

   sasioodb.datefix
   sasioodb.datefix.README     (the README contains the instructions)

Before you download the new modules, make a backup copy of your current
sasioodb file:

   mv !SASROOT/sasexe/dbi/sasioodb !SASROOT/sasexe/dbi/sasioodb.datebroke

Then, download the sasioodb.datefix and sasioodb.datefix.README files into
the !SASROOT/sasexe/dbi directory.  

You will then need to rename the sasioodb.datefix module to sasioodb:

   cd !SASROOT/sasexe/dbi
   mv sasioodb.datefix sasioodb
   chmod 755 sasioodb

You should then be able to run your SAS/ACCESS TO ODBC programs. 

Below is an example of a test program that would confirm that the fix
had been applied correctly.  This example uses an ODBC connection to Oracle.  If you are using a different database, you would need to modify your test   
accordingly:

/* This uses the new libname engine to associate the libref with the 
   qeor72 ODBC dsn that I have defined in my .odbc.ini file  */ 

libname dblib sasioodb user="scott" password=tiger ds=qeor72;
 
/* This creates a test Oracle table in the above qeor72 Oracle instance */

data dblib.y2ktmp;
  INPUT x DATE2 DATE9. DATE3 DATETIME18.;
  FORMAT DATE2 DATE9. DATE3 DATETIME21.;
cards;
1 15mar199815mar1998:01:02:30
. 31dec199931dec1999:01:02:30
3 01jan200001jan2000:01:02:30
4 .        25feb2000:01:02:30
5 01mar200001mar2000:01:02:30
;
run;

/* This PROC SQL PASS THROUGH pulls the data from the 
   Oracle table I created above to make sure all the dates
   I entered are returned properly.  If the fix has been 
   applied correctly, your date values should come back 
   correctly.   */

proc sql;
  connect to odbc ( uid="scott" pwd=tiger dsn=qeor72 );
    select * from connection to odbc (select * from Y2KTMP);
  disconnect from odbc;
quit;

The above PROC SQL should return the following data:

    X                   DATE2                   DATE3

    1      15MAR1998:00:00:00      15MAR1998:01:02:30
    .      31DEC1999:00:00:00      31DEC1999:01:02:30
    3      01JAN2000:00:00:00      01JAN2000:01:02:30
    4                       .      25FEB2000:01:02:30
    5      01MAR2000:00:00:00      01MAR2000:01:02:30
 
If you have any problems applying this fix, please contact SAS
Technical Support and reference SAS Note V7-Engine-0407.  You can 
reach us by email at support@sas.com or by phone at (919)677-8008.