Can someone help me convert this Access query to Oracle SQL?

UPDATE t1 INNER JOIN t2 ON (t1.begin_year = t2.FY) AND (t1.subhead = t2.SUBHEAD) AND (t1.proj = t2.PROJECT) AND (t1.pdli = t2.TASK) AND (t1.Department = t2.BRANCH) AND (t1.PM_Code = t2.PGM_MGR_CODE ) AND (t1.Parm = t2.PARM_CODE) SET t1.PE = t2.dodpe, t1.FRC = Mid(t2.FRC,1,5) , t1.FRC_Title = Mid(t2.FRC_Titl e,1,99), t1.PlusUp = IIf(Mid(Trim(t2 .frc_title),1,2 )='(C',True,Fal se),...