數(shù)據(jù)倉庫建模技術(shù)

數(shù)據(jù)倉庫建模技術(shù)數(shù)據(jù)倉庫建模原則滿足不同的用戶需求兼顧效率與數(shù)據(jù)粒度的需要支持需求的變化避免對業(yè)務(wù)運(yùn)營系統(tǒng)造成影響考慮未來的可擴(kuò)展性數(shù)據(jù)倉庫建模特點(diǎn)OLTP系統(tǒng)是面向應(yīng)用數(shù)據(jù)倉庫則一般按照主題(Subject)來建模數(shù)傲據(jù)俗倉該庫蠟建織模榜的錦一庭般喚步防驟對脫用挽戶伐需連求賊進(jìn)聲行梅歸變納宮，極需賽要纖綜界合略考民慮東業(yè)褲務(wù)購劃撐分站和蔽用什戶冤組株織宇兩亮方未面惹的寺問鮮題顆；高錢層巾模越型叔設(shè)泰計物即顛概豎念軋模壯型主設(shè)拼計曬確烤定尤數(shù)反據(jù)凡倉梢?guī)祜暤谋飨梢^主之題珍和肉相蘆互嫁關(guān)答系中伏層赤模食型釀設(shè)愧計默明敬確腫各嚷主帥題吧域藝的蘇實(shí)萌體底睜層歲模寬型絨設(shè)較計糊明遷確陵各心實(shí)奪體景的弓屬遙性數(shù)挺據(jù)職倉基庫姜的穿建姨模永方慎法目膊前貧較援常銅用娛的脾兩易種子建盼模贈方切法是截所協(xié)謂遍的凱第薪三牌范視式(的3劫N躺F員,即T積h允i呈r敢d謠N夫o泛r尚m捉a州l輪F雪o搖r話m兔)和么星召型俱模所式(嗽S滾t買a恨r(nóng)竿-上S系c航h謠e很m啟a抗)雁,什壞么桌是挽第堵三葛范蔽式范輕式到是退數(shù)營據(jù)怒庫麻邏跡輯扁模棚型刪設(shè)鼠計拜的叨基以本挺理級論一紛個流符想合隊(duì)第死三鐮范旁式減的幸關(guān)誓系芬必扯須篇具記有里以津下演三畝個捐條銹件:每嘉個購屬劉性歷的撤值富唯跑一,不璃具冒有撈多本義熔性;每江個弊非板主扯屬擔(dān)性碎必袖須劑完咳全說依亦賴機(jī)于霉整敘個母主胃鍵,而夜非隱主希鍵慮的亞一頌部面分;每啞個鈴非刃主機(jī)屬枕性遭不磨能有依殺賴貝于墊其靜他翁關(guān)物系近中伏的統(tǒng)屬千性,因等為罩這朗樣鍬的且話,這貿(mào)種斧屬呆性淘應(yīng)說該蒼歸悅到枕其侍他查關(guān)另系檢中來去京。兩漂種尊屬紹性病類榨別鍵茄屬替性濱(K鐵e表y用)非聽鍵膨?qū)倥炐詣t(N種o牛n拳K專e道y四)ConsultantIdConsultantLastNameConsultantFirstNameConsultantSpecializationConsultantHourlyRateCONSULTANT鍵屬性非鍵屬性數(shù)度據(jù)賺規(guī)駱范重我復(fù)奏數(shù)撕據(jù)皂組這閱個招設(shè)濃計寄違狡反資了第豆一號范搖式，黨第畝一謙范味式手是切設(shè)筍計"外央形"的凡基健本東定斗義吸，攻即懂?dāng)?shù)照據(jù)泥的第行服和姐列案組貸成娃一鍛個基在壩任廁何輛單霸元老中猶沒上有禍嵌報套底結(jié)床構(gòu)災(zāi)的濕二哨維翠表怕格羽，載數(shù)叔據(jù)且?guī)旄鹬携偯垦谝凰銈€卷數(shù)表據(jù)制值閱必登須夠是窯原咸子惜的張，說沒并有鏟列魚表傻、些重可復(fù)靈元蜻素傍或菊內(nèi)橋部撿結(jié)矛構(gòu)指。Emp-idemp-nameemp-addresschildren's-namesE1TomBerkeleyJaneE2DonBerkeleyTom,Dick,DonnaE3BobPrinceton------E4JohnNewYorkLisaE5CarolBerkeley------數(shù)盯據(jù)績規(guī)天范規(guī)票范數(shù)刻據(jù)凡規(guī)女范相蒜同拴屬姨性胸的燒多濤個突用礦途轉(zhuǎn)惡換數(shù)質(zhì)據(jù)蛙規(guī)直范相鉛同均事與實(shí)煩的勢多嫁個搜值如哲果遵事雅實(shí)列由胸實(shí)撈體灰的素部框分徐健附來民決擊定蠶，貍那纏么同這億個裹實(shí)挑體割違爆犯佩了第犧二列范趙式。宗如鋪果禿事赴實(shí)顧通或過聞實(shí)朝體叢的未一餓些緣瑞非每鍵促屬鏈性泡來例了屋解賠，漆那嗎么列就獵違隱犯臉了第這三業(yè)范倆式。第年三走范淡式棋小指結(jié)我綱們抓有誼如晉下登規(guī)趕則眨的鳳三民范益式瓦總?cè)航Y(jié)辭，些它牲歸否功解于E清.捧F偽.癥C死o怖d避d博槽士-渡-室-篇-否-夕-關(guān)筋系井模歇型刑之占父百。如架果朝每換個拴非-鍵宇屬劣性丑取千決聲于點(diǎn)鍵莊（徒全漢部日鍵工）訊，刻沒橫鍵載就暮什死么噴都間沒級有轟，誓這勁樣況的帆實(shí)駁體巨就柴是賓第謠三方范佩式敵。規(guī)哥范連化沖的旗目俗標(biāo)靜的堤口掛號苦是稠：O辭N漸E賀F走A抱C充T惠I年N散O素N愈E生P會L滴A販C功E奇!什眼么搏是郵星擴(kuò)型芝模日式星衣型俗模襲式析是澇一伯種殖多蜜維調(diào)的譯數(shù)莫據(jù)蔑關(guān)招系,它美由剝一訂個較事棟實(shí)決表(匪F鑼a旋c畏t壩T職a慈b挑l勿e慕)和長一抖組阿維附表(紙D激i乓m年e泡n近s逆i話o敘n禿T榜a局b胳l乎e朝)組鑒成孕。婦每軋個修維枯表霧都活有膛一肢個丈維歐作吵為拘主窄鍵,所擔(dān)有競這盾些擾維成則猜組茂合逃成薪事冬實(shí)源表湖的顯主謠鍵,換暗言峰之,事卵實(shí)篩表神主杏鍵爸的踐每老個點(diǎn)元絲式素躲都乎是墳維事表奧的冤外間鍵出。悅事轉(zhuǎn)實(shí)紀(jì)表驢的灰非蕩主絕屬迎性生稱碼為脂事黑實(shí)(飾F寫a桿c艇t搜)義,它別們蛙一渡般報都撞是逼數(shù)悔值足或基其諒他蹈可宴以祝進(jìn)筒行謎計竟算渠的犯數(shù)凱據(jù);而爬維連大傷都陡是倦文逗字嫌、興時角間販等辛類散型臥的栗數(shù)本據(jù)梨。第慢三彈范竭式侍和攤星腫型窮模傷式袍在雕數(shù)激據(jù)胖倉和庫舟中船的惰應(yīng)輩用大梨多雄數(shù)吊人霞在去設(shè)拐計探中租央開數(shù)視據(jù)再倉拖庫慣的憐邏棒輯靠模反型羊時,都睛按哪照非第漫三盡范諒式院來呈設(shè)伴計;而狼在巴進(jìn)豆行皂物讀理浴實(shí)響施恩時,則需由肌于漿數(shù)裹據(jù)掘庫示引耀擎齡的鉛限馳制,不鉗得你不寸對餐邏毫輯驢模遵型犯進(jìn)竄行劇不戒規(guī)抄范分處桐理(菜D緊e釀-柏N寬o黨r釀m賓a江l搜i掠z奪e那)彩,以沉提果高鞠系烏統(tǒng)脫的動響耀應(yīng)拳速挑度吩。根佩據(jù)薯數(shù)子據(jù)楚倉胸庫吩的葬測輸試氏標(biāo)謹(jǐn)準(zhǔn)T腔P圖C撫-栽D規(guī)筑范,在蟲數(shù)據(jù)據(jù)贈倉地庫驕系目統(tǒng)佩中,對誕數(shù)潤據(jù)綁庫沸引議擎壘最診大涉的和挑瘦戰(zhàn)夸主將要爺是岡這折樣凍幾煮種耳操憶作:多探表杠連太接胖、痛表哲的刑累襲計煌、辱數(shù)舞據(jù)燦排旨序談、擠大撥量遮數(shù)睛據(jù)波的姓掃取描紡。第鄙三春范綢式惹和留星蠻型質(zhì)模昨式拋在頁數(shù)撒據(jù)軋倉求庫并中獄的體應(yīng)臟用下炒面統(tǒng)列盾出景了詠一鐘些D鐮B攔M煎S在列實(shí)惱際怠系職統(tǒng)奴中昏針覺對眾這膝些怨困由難醉所孤采怖用皇的剩折先衷羅處躺理腔辦院法:1、旁如難何加避仿免縮慧多灑表命連休接:在州設(shè)燈計漠模饞型賣時宣對銷表豎進(jìn)盟行役合助并,即塑所節(jié)謂斬的陰預(yù)估連昏接(射P頭r屬e友-里J廳o針i辣n懂)。搏當(dāng)輔數(shù)綿據(jù)摘規(guī)俘模濫小漁時,也屑可納以首采救用帆星忙型突模價式,這搏樣放能戀提敏高波系幼統(tǒng)父速潮度,但泄增聲加筍了穗數(shù)曾據(jù)妖冗熔余稍量莖。2、浴如濁何嶄避懲免果表亂的鳴累可計:在妥模際型基中恭增浙加潑有付關(guān)托小郵計頸數(shù)向據(jù)(言S憤u款m艙m凱a什r雁i瞧z孔e斧d濁D桑a洗t繩a咽)的間項(xiàng)咽。死這蛙樣弦也牧增脂加曲了壇數(shù)活據(jù)摩冗荷余,而防且喪如屠果塔某求項(xiàng)吐問傍題奏不趨在宏預(yù)詞建潤的販累尖計插項(xiàng)城內(nèi),需叢臨消時撲調(diào)顯整炭。3、蜻如死何槽避緩免尺數(shù)鐘據(jù)乖排免序:對反數(shù)嚷?lián)⑹聡嵪认嗯派倚蚧?。支但臥隨影著輔數(shù)攻據(jù)房誠倉嚼庫爺系板統(tǒng)壁的丟運(yùn)今行,不霜斷驢有枝新忽的緩數(shù)旦據(jù)盼加幻玉入,數(shù)目據(jù)綿庫點(diǎn)管東理館員董的尼工盼作環(huán)將鉛大迎大紅增麥加能。脾大采量集的棚時顫間榜將都用編于居對辜系勺統(tǒng)恨的中整朗理,系罰統(tǒng)梯的預(yù)可母用廚性礦隨減之喂降耍低慕。4、脖如涉何貫避待免桑大獸表司掃決描:通暴過譽(yù)使悼用錯大膊量睛的國索相引,可趁以聰避膀免向?qū)β榇笃看皵?shù)伍據(jù)惠進(jìn)紀(jì)行練掃律描躍。佩但樓這渣也請將毫增蠅加誤系欠統(tǒng)廊的呼復(fù)像雜惡程齒度,降紙低您系模統(tǒng)胸進(jìn)似行劈燕動免態(tài)要查納詢疲的兇能供力起。不編規(guī)習(xí)范西處表理微的難階慘段由矮于妙中蜂央彎數(shù)擺據(jù)奧倉爬庫好的羞數(shù)腔據(jù)階模粒型框反緣瑞映茄了環(huán)整油個士企逼業(yè)曉的除業(yè)健務(wù)星運(yùn)利行耕規(guī)寺律,在嚷這耀里釘進(jìn)豆行茄不蘋規(guī)飛范豪處賣理粱容領(lǐng)易證影仗響北整彎個塔系榆統(tǒng),不汗利鄭于戒今靜后婆的末擴(kuò)績展鐘。菌而架且軍不味規(guī)永范原處德理孝產(chǎn)示生拼的圖數(shù)瓣據(jù)腎冗安余戚將眨使致整淺個環(huán)系略統(tǒng)