select wh.HISTORYID as "HISTORYID",
aau.FIRST_NAME as "OPERATION OWNER",
longtodate(wh.OPERATIONTIME) as "OPERATION TIME",
wh.DESCRIPTION as "DESCRIPTION",
wh.OPERATION as "OPERATION",
whd.HISTORYDIFFID as "HISTORYDIFFID",
whd.COLUMNNAME as "COLUMNNAME",
whd.PREV_VALUE as "PREVIOUS VALUE",
whd.CURRENT_VALUE as "CURRENT VALUE" from workorderhistory wh left join workorderhistorydiff whd on wh.historyid = whd.historyid left join aaauser aau on wh.operationownerid = aau.user_id where wh.workorderid = #REQUESTID