https://communities.sas.com/t5/SAS-Programming/h-clear/m-p/17398#M2524 Hi.<BR /> For each data step iteration, the statement ' declare hash ' will re-build hash table and<BR /> overwrite the last hash table if you do not conditionally execute ' declare hash' statement.<BR /> <BR /> <BR /> Ksharp Mon, 28 Feb 2011 03:14:25 GMT Ksharp 2011-02-28T03:14:25Z https://communities.sas.com/t5/SAS-Programming/h-clear/m-p/17396#M2522 Hi,<BR /> <BR /> When trying to use h.clear(); for hash calculations, I get message<BR /> <BR /> ERROR: Unknown method CLEAR for DATASTEP.HASH at line 35 column 3.<BR /> ERROR: Could not find method.<BR /> <BR /> Does it mean that with SAS 9.1.3. I can't use this method? Is there some alternative to that?<BR /> <BR /> Thanks,<BR /> Ieva Fri, 25 Feb 2011 07:23:52 GMT https://communities.sas.com/t5/SAS-Programming/h-clear/m-p/17396#M2522 ieva 2011-02-25T07:23:52Z https://communities.sas.com/t5/SAS-Programming/h-clear/m-p/17397#M2523 Hi leva,<BR /> <BR /> You could declare a hiter object and use it with the remove method of the hash object.<BR /> Hope this helps,<BR /> Vasile Sat, 26 Feb 2011 03:41:44 GMT https://communities.sas.com/t5/SAS-Programming/h-clear/m-p/17397#M2523 Vasile01 2011-02-26T03:41:44Z https://communities.sas.com/t5/SAS-Programming/h-clear/m-p/17398#M2524 Hi.<BR /> For each data step iteration, the statement ' declare hash ' will re-build hash table and<BR /> overwrite the last hash table if you do not conditionally execute ' declare hash' statement.<BR /> <BR /> <BR /> Ksharp Mon, 28 Feb 2011 03:14:25 GMT https://communities.sas.com/t5/SAS-Programming/h-clear/m-p/17398#M2524 Ksharp 2011-02-28T03:14:25Z