# 557 Explicit TDBISAMQuery UnPrepare Method Call Required in 2.x but not in 1.x

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The requirement for an explicit TDBISAMQuery UnPrepare method call when the Prepare method was not explicitly called to begin with has been removed. If you call the Open method of a TDBISAMQuery component without calling the Prepare method first, then the UnPrepare method will not be required after the Close method call in order to free the resources allocated to the query.