https://communities.sas.com/t5/SAS-Procedures/the-number-of-underlying-table/m-p/66577#M19017 I found some inconsistency in the SAS Certification Prep Guide. For the maximum number of underlying tables in an inner join, in some part, it is mentioned to be 32, in another part, it is 256. Which one is correct? Tue, 17 May 2011 20:51:38 GMT andrew0845 2011-05-17T20:51:38Z https://communities.sas.com/t5/SAS-Procedures/the-number-of-underlying-table/m-p/66577#M19017 I found some inconsistency in the SAS Certification Prep Guide. For the maximum number of underlying tables in an inner join, in some part, it is mentioned to be 32, in another part, it is 256. Which one is correct? Tue, 17 May 2011 20:51:38 GMT https://communities.sas.com/t5/SAS-Procedures/the-number-of-underlying-table/m-p/66577#M19017 andrew0845 2011-05-17T20:51:38Z https://communities.sas.com/t5/SAS-Procedures/the-number-of-underlying-table/m-p/66578#M19018 I think it depends upon which SAS version you have. I found the following in an article posted on the web: The maximum number of tables that can be joined at <BR /> one time is 32. (256 in SAS 9.1.3 SP4)<BR /> <BR /> Art<BR /> -------<BR /> &gt; I found some inconsistency in the SAS Certification<BR /> &gt; Prep Guide. For the maximum number of underlying<BR /> &gt; tables in an inner join, in some part, it is<BR /> &gt; mentioned to be 32, in another part, it is 256. Which<BR /> &gt; one is correct? Tue, 17 May 2011 22:27:11 GMT https://communities.sas.com/t5/SAS-Procedures/the-number-of-underlying-table/m-p/66578#M19018 art297 2011-05-17T22:27:11Z