note status: "See notice at end of class."; date: "$Date$" revision: "$Revision$" product: "EiffelStore" database: "All bases" deferred class DB_EXPRESSION inherit STRING_HDL feature -- Status report last_query: detachable STRING -- Last SQL statement used obsolete "Use `last_query_32' instead [2017-11-30]." do if attached last_query_32 as l_str then Result := l_str.as_string_8 end end last_query_32: detachable STRING_32 -- Last SQL statement used is_executable: BOOLEAN -- Is the query executable? do Result := attached last_query_32 end is_affected_row_count_supported: BOOLEAN -- Is `affected_row_count' supported? deferred end affected_row_count: INTEGER_32 -- The number of rows changed, deleted, or inserted by the last statement require is_affected_row_count_supported: is_affected_row_count_supported deferred end feature -- Status setting set_query (query: READABLE_STRING_GENERAL) -- Set `last_query_32' with `query'. require query_not_void: query /= Void do last_query_32 := query.as_string_32 ensure last_query_32_changed: attached last_query_32 as lt_s and then lt_s.same_string (query.as_string_32) end feature -- Basic operations execute_query -- Execute `last_query'. require is_executable: is_executable deferred end note copyright: "Copyright (c) 1984-2017, Eiffel Software and others" license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)" source: "[ Eiffel Software 5949 Hollister Ave., Goleta, CA 93117 USA Telephone 805-685-1006, Fax 805-685-6869 Website http://www.eiffel.com Customer support http://support.eiffel.com ]" end -- class DB_EXPRESSION