原帖:http://www.cnblogs.com/nayitian/p/3231734.html wmsys.wm_concat Definition: The Oracle PL/SQL WM_CONCAT function is used to aggregate data from a number of rows into a single row, giving a list of data associated with a specific COMMENT_BODY. In ef
错误信息:Retrieving the COM class factory for component with CLSID {91493441-5A91-11CF-8700-00AA0060263B} failed due to the following error: 8000401a The server process could not be started because the configured identity is incorrect. Check the username