7、s,nober,hober()asline_no,title_idfromtitles --SQL2000的写法 selectline_noidentity(int,1,1),title_idinto#tfromtitles select*from#t droptable#t Question7:Canyoutellmeentsatperformanceofexecution? Statement1: ifNOTEXISTS(select*frompublishersarket'end e
8、lse begin SELECT'publishersarket' end Ansnstate,andtitleauhtorhavebookseachauthor authorsod_cook'typebooks? Indatabasepubs,usethreetablestores,salesandtitlestoimplementth