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If you use the LIBNAME access engine to join a DBMS table with a SAS
data set and there are 200 or fewer unique values in the SAS data set,
the values are passed to the DBMS for processing using an IN clause. If
the number of unique values is greater than 200, then SAS will not pass
them to the DBMS, and performance may be degraded.

This number of values has increased to 1024 for SAS 8.2. This allows
larger IN clauses to be generated using up to 1024 values, unless the
database has a smaller limit. If the database does have a smaller limit,
you may encounter database errors similar to the following:

   ERROR: Error in result set. Error Code: -404 Too many ANDs or ORs in
   expression (limit 250 per expression level).  Try splitting query or
   expression (limit 250 per expression level).


A fix for SAS 9.1.3 (9.1 TS1M3) for this issue is available at:

http://www.sas.com/techsup/download/hotfix/e9_sbcs_prod_list.html#006997

For customers running SAS with Asian Language Support (DBCS), this
fix should be downloaded from:

http://www.sas.com/techsup/download/hotfix/e9_dbcs_prod_list.html#006997

Operating System and Release Information

A fix for SAS 9.1.3 (9.1 TS1M3) for this issue is available at:

A fix for SAS 9.1.3 (9.1 TS1M3) with Asian Language Support (DBCS) for this issue is available at :