Cơ sở dữ liệu chủ đề kinh tế vĩ mô

’<br /> Tap ch´ Tin hoc v` Diˆu khiˆn hoc, T.24, S.1 (2008), 50–61<br /> ı<br /> a `<br /> e<br /> e<br /> .<br /> .<br /> .<br /> <br /> . ’ . ˜. ˆ<br /> ’ ` `<br /> ´<br /> ˆ ˆ<br /> ˆ I ˆ<br /> CO SO DU LIEU CHU DE VE KINH TE V˜ MO<br /> .<br /> ˜<br /> ˆ ˘<br /> `<br /> DO VAN THANH<br /> <br /> Bˆ Kˆ hoach v` Dˆu tu.<br /> o e .<br /> a `<br /> a<br /> . ´<br /> Abstract. Data warehouses play a very important role in processes of discovering new knowledge,<br /> of making decisions and developing economic policies. Data mart is a data warehouse in a specific<br /> socio-economic field and almost is still not developed in Viet Nam now.<br /> Main goal of this paper is to present briefly developing a macroeconomic data mart and some its<br /> important functions. The data mart is used to serve preparing quarterly economic review, analyzing<br /> and forecasting main problems in macroeconomics such as balances of state budget, of development<br /> investment capital, of trade and import-export, of foreign debt and international payments, , and to<br /> forecast growth of the economy.<br /> ´<br /> ´<br /> o a<br /> a<br /> a ınh a<br /> e<br /> u<br /> o<br /> T´m t˘t. C´c kho d˜. liˆu d´ng vai tr` rˆt quan trong trong c´c qu´ tr` ph´t hiˆn tri th´.c m´.i,<br /> o<br /> a<br /> a<br /> u e o<br /> .<br /> .<br /> .<br /> ´<br /> ´<br /> ’ u e<br /> ’ ` ınh a<br /> a a<br /> e<br /> u e<br /> ra quyˆt dinh v` xˆy du.ng c´c ch´ s´ch kinh tˆ. Co. so. d˜. liˆu chu dˆ ch´ l` kho d˜. liˆu trong<br /> e .<br /> a<br /> ınh a<br /> e<br /> .<br /> .<br /> .<br /> ’<br /> ´ a o . e a e `<br /> ’<br /> mˆt l˜ vu.c kinh tˆ - x˜ hˆi cu thˆ v` hiˆn hˆu nhu. chu.a du.o.c xˆy du.ng o. nu.o.c ta.<br /> o ınh .<br /> e<br /> a<br /> ´<br /> .<br /> .<br /> .<br /> . a<br /> .<br /> ´<br /> ’ u e<br /> ’ `<br /> Muc d´ cua b`i b´o n`y l` tr` bˆy mˆt c´ch t´m t˘ t qu´ tr` xˆy du.ng co. so. d˜. liˆu chu dˆ<br /> a<br /> o a<br /> o<br /> a<br /> a ınh a<br /> e<br /> . ıch ’ a a a a ınh `<br /> .<br /> .<br /> .<br /> ’<br /> ` kinh tˆ v˜ mˆ v` mˆt sˆ ch´.c n˘ng quan trong cua n´. Co. so. d˜. liˆu chu dˆ n`y du.o.c su. dung dˆ<br /> ´ ı o a o o u a<br /> ´<br /> ’ o<br /> ’ u e<br /> ’ ` a<br /> ’ .<br /> vˆ<br /> e<br /> e<br /> e<br /> e<br /> .<br /> .<br /> .<br /> .<br /> .ng b´o c´o tˆ ng quan kinh tˆ qu´ , phuc vu phˆn t´ v` du. b´o nh˜.ng vˆn dˆ chu yˆu cua<br /> ’<br /> ´ y<br /> ´ e<br /> ´ ’<br /> ’ e<br /> xˆy du<br /> a<br /> a a o<br /> e<br /> a ıch a . a<br /> u<br /> a `<br /> .<br /> .<br /> .<br /> ’<br /> ´<br /> ´<br /> ´ ´ a<br /> ´<br /> a o<br /> a o o `<br /> a<br /> e<br /> a o<br /> kinh tˆ v˜ mˆ nhu.: cˆn dˆi ngˆn s´ch nh` nu.o.c; cˆn dˆi vˆn dˆu tu. ph´t triˆn; cˆn dˆi ngoai thu.o.ng<br /> e ı o<br /> a a<br /> a ´<br /> .<br /> ’<br /> ’<br /> ´<br /> ´ ´<br /> ´<br /> ’<br /> v` xuˆt nhˆp khˆ u; cˆn dˆi no. nu.o.c ngo`i v` thanh to´n quˆc tˆ,..., v` dˆ du. b´o t˘ng tru.o.ng kinh<br /> a a<br /> a<br /> a<br /> a o .<br /> ´<br /> a a<br /> a<br /> o e<br /> a e . a a<br /> .<br /> ´<br /> tˆ.<br /> e<br /> <br /> ´.<br /> ˆ<br /> 1. GIO I THIEU<br /> .<br /> `<br /> ´<br /> ’ u e<br /> ’<br /> o a<br /> u<br /> o<br /> o a<br /> a<br /> e<br /> Co. so. d˜. liˆu (CSDL) c´ cˆ u tr´c bao gˆ m hai loai: mˆt l` CSDL t´c nghiˆp quan tri d˜.<br /> .<br /> .<br /> .<br /> .<br /> . u<br /> .o.c ph´t sinh t`. c´c hoat dˆng h`ng ng`y v` hˆ tro. c´c hoat dˆng xu. l´ tru.c tuyˆn<br /> ˜<br /> ´<br /> ’ y .<br /> liˆu du .<br /> e<br /> a<br /> u a<br /> a<br /> a a o . a<br /> e<br /> .<br /> . o<br /> .<br /> . o<br /> .<br /> .ng khˆng tru.c tiˆp hˆ tro. du.o.c c´c hoat dˆng khai ph´ d˜. liˆu (data mining) v` hai l`<br /> ˜<br /> ´ o .<br /> nhu<br /> o<br /> e<br /> a u e<br /> a<br /> a<br /> .<br /> . a<br /> . o<br /> .<br /> .<br /> ˜<br /> `<br /> kho d˜. liˆu (data warehouse) nh˘ m phuc vu khai ph´ d˜. liˆu v` hˆ tro. c´c hoat dˆng phˆn<br /> u e<br /> a<br /> a u e a o . a<br /> o<br /> a<br /> .<br /> .<br /> .<br /> .<br /> . .<br /> ’<br /> ´<br /> t´ d˜. liˆu tru.c tuyˆn. C´c kho d˜. liˆu lu.u tr˜. d˜. liˆu t´ ho.p, khˆng thˆ thay dˆ i du.o.c,<br /> ıch u e<br /> e<br /> a<br /> u e<br /> u u e ıch .<br /> o<br /> e’<br /> o<br /> .<br /> .<br /> .<br /> .<br /> .<br /> ., trong khoang th`.i gian d`i, du.o.c thu thˆp t`. nhiˆu nguˆ n nhˆ t l` t`. nhiˆu<br /> `<br /> `<br /> ´<br /> `<br /> ’<br /> ’<br /> c´ t´ lich su<br /> o ınh .<br /> o<br /> a<br /> a u<br /> e<br /> o<br /> a a u<br /> e<br /> .<br /> .<br /> `<br /> CSDL t´c nghiˆp du.o.c ph´t triˆ n du.a trˆn nhiˆu hˆ quan tri CSDL kh´c nhau. C´c kho d˜.<br /> a<br /> e<br /> a<br /> e’<br /> e<br /> e e ’<br /> a<br /> a<br /> u<br /> .<br /> .<br /> .<br /> .<br /> .<br /> .`.ng rˆ t l´.n. Mˆt phˆn cua kho d˜. liˆu, tˆp trung v`o mˆt chu dˆ kinh tˆ-x˜ hˆi<br /> ´<br /> `<br /> ´<br /> ’<br /> ’ `<br /> liˆu thu o<br /> e<br /> a o<br /> o<br /> a<br /> u e<br /> a<br /> a<br /> o<br /> e<br /> e a o<br /> .<br /> .<br /> .<br /> .<br /> .<br /> .<br /> .o.c goi l` CSDL chu dˆ (Data Mart). C´c CSDL chu dˆ du.o.c xˆy du.ng<br /> ’ `<br /> ’ `<br /> (KT-XH) n`o d´ du .<br /> a o<br /> e<br /> a<br /> e<br /> . a<br /> . a<br /> .<br /> ’ ` o a<br /> mˆt c´ch dˆc lˆp tru.´.c khi c´ kho d˜. liˆu c˜ng du.o.c goi l` CSDL chu dˆ dˆc lˆp.<br /> o a<br /> o a<br /> o<br /> o<br /> u e u<br /> e . .<br /> .<br /> . .<br /> .<br /> .<br /> . a<br /> . d˜ biˆt, qu´ tr` hoach dinh ch´ s´ch v` diˆu tiˆt nˆn kinh tˆ thi tru.`.ng o. nu.´.c<br /> ´<br /> ´ e<br /> ´<br /> ’<br /> Nhu a e<br /> a ınh .<br /> ınh a<br /> a `<br /> e<br /> e `<br /> e .<br /> o<br /> o<br /> .<br /> .o.ng cao, trong d´ nhˆ t l` thˆng tin phˆn<br /> ´<br /> ´<br /> ta hiˆn nay d`i hoi cˆn c´ thˆng tin KT-XH chˆ t lu .<br /> e<br /> o ’ ` o o<br /> a<br /> a<br /> o a a o<br /> a<br /> .<br /> . b´o [1 − 2, 4 − 5] v` dˆ d´p u.ng du.o.c yˆu cˆu n`y tru.´.c hˆt phai xˆy du.ng du.o.c mˆt<br /> ’ a ´<br /> `<br /> ´<br /> ’ a<br /> t´ du a<br /> ıch, .<br /> a e<br /> o e<br /> o<br /> . e a a<br /> .<br /> .<br /> .<br /> ´<br /> ´<br /> ’ `<br /> ’ a<br /> ’<br /> sˆ CSDL chu dˆ phan ´nh t` h` ph´t triˆ n KT-XH cua dˆ t nu.´.c theo th`.i gian n˘m,<br /> o<br /> e<br /> ınh ınh a<br /> e’<br /> a<br /> o<br /> o<br /> a<br /> <br /> . ’ . ˜. ˆ<br /> ’ E E<br /> ´<br /> ˆ ˆ<br /> ˆ I ˆ<br /> CO SO DU LIEU CHU D` V` KINH TE V˜ MO<br /> .<br /> <br /> 51<br /> <br /> ’<br /> ’ `<br /> e<br /> qu´, th´ng, liˆn tuc trong mˆt khoang th`.i gian d`i. Hiˆn tai o. nu.´.c ta nh˜.ng CSDL chu dˆ<br /> y a<br /> e .<br /> o<br /> o<br /> a<br /> e . ’<br /> o<br /> u<br /> .<br /> .<br /> . vˆy c`n rˆ t hiˆm v` c´ thˆ n´i hˆu nhu. chu.a c´.<br /> ´ e<br /> ´<br /> nhu a o a<br /> a o e’ o `<br /> a<br /> o<br /> .<br /> ´<br /> a o o<br /> Muc d´ cua b`i b´o n`y l` tr` bˆy mˆt c´ch t´m t˘t qu´ tr` xˆy du.ng v` mˆt sˆ<br /> a<br /> o a<br /> o<br /> a<br /> a ınh a<br /> .<br /> . ´<br /> . ıch ’ a a a a ınh `<br /> .<br /> ’<br /> `<br /> ´u cua CSDL chu dˆ dˆc lˆp nh˘ m phuc vu xˆy du.ng b´o c´o tˆ ng quan kinh<br /> ` o a<br /> ’ e<br /> ’ e . .<br /> t´ n˘ng chu yˆ ’<br /> ınh a<br /> a<br /> a a o<br /> .<br /> . a<br /> .<br /> ˜<br /> ´<br /> ´ e ’ e ’<br /> ´<br /> ´<br /> tˆ qu´, hˆ tro. c´c hoat dˆng phˆn t´ du. b´o nh˜.ng vˆ n dˆ chu yˆu cua kinh tˆ v˜ mˆ nhu.:<br /> e y o . a<br /> o<br /> a ıch, . a<br /> u<br /> a `<br /> e ı o<br /> . .<br /> .´.c; cˆn dˆi vˆn dˆu tu. ph´t triˆ n; ngoai thu.o.ng v` cˆn dˆi xuˆ t<br /> ´<br /> ´ ´ a<br /> ´<br /> ´<br /> a a<br /> a<br /> a<br /> cˆn dˆi ngˆn s´ch nh` nu o<br /> a o<br /> a o o `<br /> a<br /> e’<br /> a a o<br /> .<br /> ’u; no. nu.´.c ngo`i v` c´n cˆn thanh to´n quˆc tˆ; t˘ng tru.o.ng kinh tˆ; t` h` san<br /> ´ ´<br /> ´<br /> ’<br /> nhˆp khˆ<br /> a<br /> a<br /> o<br /> a a a a<br /> a<br /> o e a<br /> e ınh ınh ’<br /> .<br /> .<br /> ´<br /> ´<br /> ´<br /> xuˆ t v` gi´ ca ch´ theo c´c ng`nh kinh tˆ, theo c´c loai h` kinh tˆ,...<br /> a a a ’ ınh<br /> a<br /> a<br /> e<br /> a<br /> ınh<br /> e<br /> .<br /> ´<br /> ´<br /> `<br /> `<br /> B`i b´o du.o.c cˆ u tr´c nhu. sau: sau phˆn n`y, phˆn II s˜ tr` bˆy mˆt c´ch t´m t˘t<br /> a a<br /> a<br /> u<br /> a a<br /> a<br /> e ınh `<br /> a<br /> o a<br /> o<br /> a<br /> .<br /> .<br /> .ng nˆi dung cˆt yˆu nhˆ t cua qu´ tr` xˆy du.ng CSDL chu dˆ vˆ kinh tˆ v˜ mˆ nhu.:<br /> ´<br /> ´ ´<br /> ´<br /> ’ ` `<br /> nh˜<br /> u<br /> e e<br /> e ı o<br /> o<br /> o e<br /> a ’<br /> a ınh a<br /> .<br /> .<br /> ’ ` a a<br /> `<br /> ` u v` c˘n c´. dˆ dˆ xuˆ t xˆy du.ng CSDL; muc tiˆu v` yˆu cˆu cua CSDL chu dˆ vˆ kinh<br /> ´<br /> ’<br /> ’ ` `<br /> e a e a<br /> nhu cˆ a a u e e<br /> a<br /> e e<br /> .<br /> .<br /> ´ ´<br /> ´<br /> ´<br /> ’ e<br /> ’<br /> ’ `<br /> e<br /> e e<br /> ınh<br /> a u e<br /> tˆ v˜ mˆ; hˆ thˆng chı tiˆu KT-XH cua CSDL chu dˆ; thiˆt kˆ quy tr` thu thˆp d˜. liˆu,<br /> e ı o e o<br /> .<br /> .<br /> .<br /> o ınh u e a o<br /> e<br /> mˆ h` phˆn r˜ ch´.c n˘ng, mˆ h` d˜. liˆu v` cˆng nghˆ du.o.c su. dung dˆ xˆy du.ng CSDL<br /> o ınh a a u a<br /> e’ a<br /> .<br /> .<br /> . ’ .<br /> .<br /> ´<br /> ´<br /> ´ ´<br /> ’ ` o<br /> ’ e<br /> chu dˆ d´. Muc 3 s˜ gi´.i thiˆu mˆt sˆ t´ n˘ng chu yˆu nhˆ t du.o.c xˆy du.ng theo thiˆt kˆ<br /> e<br /> e o<br /> e<br /> o o ınh a<br /> a<br /> e e<br /> .<br /> .<br /> . ´<br /> . a<br /> .<br /> .o.c dˆ xuˆ t o. Muc 2. Cuˆi c`ng b`i b´o s˜ tr` bˆy hu.´.ng ph´t triˆ n v` ho`n thiˆn tiˆp<br /> ´<br /> ´<br /> ´<br /> du . e’ a ’<br /> o u<br /> a a e ınh `<br /> a<br /> o<br /> a<br /> e’ a a<br /> e<br /> e<br /> .<br /> .<br /> ’<br /> theo cua CSDL n`y.<br /> a<br /> .<br /> . ’ . ˜. ˆ<br /> ’ E E<br /> ´<br /> ˆ<br /> ˆ<br /> ˆ ˆ<br /> ˆ I<br /> ˆ<br /> 2. NOI DUNG XAY DU NG CO SO DU LIEU CHU D` V` KINH TE V˜ MO<br /> .<br /> .<br /> .<br /> ’ e<br /> `<br /> ´<br /> 2.1. Nhu cˆu v` c˘n c´. dˆ dˆ xuˆ t xˆy du.ng<br /> a<br /> a a u e `<br /> a a<br /> .<br /> . ´n “Hˆ tro. xˆy du.ng hˆ thˆng thˆng tin quˆc gia phuc<br /> ’<br /> ˜<br /> ´<br /> ´<br /> B´o c´o tˆ ng kˆt cua pha 1 Du a<br /> a a o<br /> e ’<br /> o . a<br /> e o<br /> o<br /> o<br /> .<br /> .<br /> . ´<br /> .<br /> ˆ<br /> ´ hoach kinh tˆ - ALA/VIE/95/12” do Liˆn minh chˆu Au (EU) gi´p d˜. d˜ khuyˆn<br /> ´<br /> ´<br /> e<br /> vu lˆp kˆ .<br /> e<br /> e<br /> a<br /> u o a<br /> . a e<br /> .<br /> ´ .<br /> nghi r˘ ng: t`. thu.c trang sˆ liˆu c´ thˆ thu thˆp du.o.c trong qu´ tr` xˆy du.ng v` ph´t triˆ n<br /> a<br /> u .<br /> o e o e’<br /> a<br /> a ınh a<br /> a a<br /> e’<br /> . `<br /> .<br /> .<br /> .<br /> .<br /> .`.ng o. Viˆt Nam viˆc phˆn t´ v` du. b´o kinh tˆ v˜ mˆ cua nu.´.c ta nˆn<br /> `<br /> ´<br /> ´<br /> ’<br /> nˆn kinh tˆ thi tru o<br /> e<br /> e .<br /> e<br /> e<br /> a ıch a . a<br /> e ı o ’<br /> o<br /> e<br /> .<br /> .<br /> .ng vˆ n dˆ chu yˆu sau dˆy [1 − 2]:<br /> ´<br /> ´ e ’ e<br /> a<br /> tˆp trung v`o nh˜<br /> a<br /> a<br /> u<br /> a `<br /> .<br /> . b´o kinh tˆ ng˘n han v` trung han: tˆp trung v`o dam bao su. tu.o.ng th´<br /> ` .<br /> ´ ´<br /> ’<br /> ’<br /> 1.1. Vˆ du a<br /> e<br /> e a<br /> a<br /> a<br /> a<br /> ıch<br /> .<br /> .<br /> .<br /> .<br /> . b´o cho n˘m hiˆn h`nh theo qu´, cho n˘m sau v`<br /> `<br /> ´<br /> ’<br /> a<br /> e a<br /> y<br /> a<br /> a<br /> cua GDP, GNI v` nhu cˆu cuˆi c`ng; Du a<br /> a<br /> a<br /> o u<br /> .<br /> .<br /> ` : Cˆn dˆi ngˆn s´ch nh` nu.´.c, Ngoai thu.o.ng v` c´n cˆn thanh to´n, No. nu.´.c<br /> ´<br /> 5 n˘m sau vˆ a o<br /> a<br /> e<br /> a a<br /> a o<br /> a a a<br /> a<br /> o<br /> .<br /> .<br /> ´<br /> ´<br /> ngo`i, T` h` san xuˆ t v` gi´ ca ch´ theo c´c ng`nh kinh tˆ, theo c´c loai h` kinh<br /> a<br /> ınh ınh ’<br /> a a a ’ ınh<br /> a<br /> a<br /> e<br /> a<br /> ınh<br /> .<br /> ´<br /> tˆ,...<br /> e<br /> ’<br /> ´<br /> ´<br /> ´<br /> ` . a<br /> 1.2. Vˆ du. b´o kinh tˆ d`i han: tˆp trung v`o du. b´o thay dˆ i co. cˆ u kinh tˆ; du. b´o<br /> e<br /> e a .<br /> a<br /> a<br /> o<br /> a<br /> e . a<br /> .<br /> . a<br /> `<br /> ´<br /> ´<br /> ´ o<br /> vˆ xu thˆ dˆ thi ho´ v` ph´t triˆ n nˆng thˆn, Dˆn sˆ v` viˆc l`m, Gi´o duc v` Y tˆ, Mˆi<br /> e<br /> e o . a a a<br /> e’ o<br /> o<br /> a o a e a<br /> a<br /> e<br /> .<br /> . a<br /> .`.ng, Cˆng nghˆ,...<br /> o<br /> e<br /> tru o<br /> .<br /> ˜<br /> ´<br /> ´<br /> ´<br /> ’<br /> Kˆt qua quan trong nhˆ t cua pha 1 Du. ´n n`y l`: dˆ xuˆ t v` hu.´.ng dˆn xˆy du.ng B´o<br /> e<br /> a ’<br /> e a a o<br /> a a<br /> a<br /> .<br /> . a a a `<br /> .<br /> ’<br /> ´ ´<br /> ´<br /> c´o tˆ ng quan kinh tˆ quˆc gia theo qu´. N´ du.o.c xem l` cˆng cu theo d˜i t` h` kinh tˆ<br /> a o<br /> e o<br /> y o<br /> a o<br /> o ınh ınh<br /> e<br /> .<br /> .<br /> . (KH-DT) v`<br /> ´<br /> `<br /> ´<br /> `<br /> ng˘n han v` phuc vu cˆng t´c diˆu h`nh nˆn kinh tˆ cua Bˆ Kˆ hoach- Dˆu tu<br /> a<br /> a<br /> a `<br /> e a<br /> e<br /> e ’<br /> o e<br /> a<br /> a<br /> . ´<br /> .<br /> .<br /> . o<br /> .c chˆ t n´ l` ban b´o c´o tˆ ng ho.p phan ´nh t` h` ph´t triˆ n kinh tˆ o.<br /> ’<br /> ’<br /> ´<br /> ´<br /> ’<br /> ’ a<br /> Ch´ phu. Thu<br /> ınh<br /> a o a ’<br /> a a o<br /> ınh ınh a<br /> e<br /> e ’<br /> .<br /> .<br /> ’<br /> ˜<br /> ` m v˜ mˆ, tr` bˆy diˆn biˆn t` h` v` nh˜.ng thay dˆ i co. ban so v´.i th`.i k` tru.´.c d´,<br /> `<br /> ´ ınh ınh a u<br /> ’<br /> tˆ<br /> a<br /> ı o ınh a<br /> e<br /> e<br /> o<br /> o<br /> o y<br /> o o<br /> ’<br /> ´<br /> ´<br /> ’ ’ o y e<br /> du. b´o nh˜.ng n´t co. ban o. th`.i k` tiˆp theo v` du.o.c xem l` hat nhˆn dˆ di dˆn chuˆ n ho´<br /> a<br /> u<br /> e<br /> a<br /> a .<br /> a e’<br /> e<br /> a<br /> a<br /> .<br /> .<br /> ´<br /> ´ . ´<br /> ’<br /> thˆng nhˆ t Hˆ thˆng thˆng tin KT-XH cua Bˆ KH-DT.<br /> o<br /> a e o<br /> o<br /> o<br /> .<br /> ’ phuc vu du.o.c viˆc xˆy du.ng B´o c´o tˆ ng quan kinh tˆ qu´<br /> ’<br /> ´<br /> Tuy nhiˆn mˆt CSDL c´ thˆ<br /> e<br /> o<br /> o e<br /> e a<br /> a a o<br /> e y<br /> .<br /> .<br /> .<br /> .<br /> .<br /> .<br /> . c´c hoat dˆng phˆn t´ v` du. b´o ng˘n han, trung han mˆt sˆ vˆ n<br /> ˜<br /> ´<br /> cho Bˆ KH-DT v` hˆ tro a<br /> o<br /> a o .<br /> a ıch a . a<br /> a<br /> o o a<br /> .<br /> . o<br /> .<br /> .<br /> .<br /> . ´ ´<br /> <br /> 52<br /> <br /> ˜<br /> ˆ ˘<br /> `<br /> DO VAN THANH<br /> <br /> ˜<br /> ˜ a a ` ` e’ `<br /> `<br /> ´ e<br /> ´<br /> dˆ chu yˆu vˆ kinh tˆ v˜ mˆ nˆu trˆn vˆn chu.a du.o.c xˆy du.ng. Thu.c tiˆn ˆ y l` tiˆn dˆ dˆ dˆ<br /> e ’ e `<br /> e ı o e<br /> e a<br /> e<br /> e ´<br /> e e<br /> . a<br /> .<br /> .<br /> .ng CSDL chu dˆ vˆ kinh tˆ v˜ mˆ tai Trung tˆm Thˆng tin v` Du. b´o<br /> ´ a<br /> ´<br /> ’ a<br /> ’ ` `<br /> xuˆ t cˆn phai xˆy du<br /> a `<br /> e e<br /> e ı o .<br /> a<br /> o<br /> a . a<br /> .<br /> ´<br /> KT-XH Quˆc gia.<br /> o<br /> ´<br /> ’<br /> ’<br /> o<br /> e a<br /> u<br /> a o a ıt a<br /> Do c´c CSDL t´c nghiˆp vˆ KT-XH o. nu.´.c ta hiˆn rˆ t manh m´n, tan m´t, c´ rˆ t ´ v`<br /> a<br /> a<br /> e `<br /> . ´<br /> . e<br /> ’ a<br /> ´t lu.o.ng thˆ p nˆn c´ch tiˆp cˆn ph` ho.p dˆ xˆy du.ng c´c CSDL phuc vu phˆn t´<br /> ´ e a<br /> ´ a<br /> chˆ<br /> a<br /> e<br /> a<br /> e<br /> u .<br /> a<br /> a ıch, du.<br /> .<br /> .<br /> .<br /> .<br /> .<br /> .<br /> . nu.´.c ta hiˆn nay l` xˆy du.ng CSDL chu dˆ dˆc lˆp. CSDL chu dˆ vˆ kinh tˆ<br /> ´<br /> ’<br /> ’ ` o a<br /> ’ ` `<br /> b´o KT-XH o<br /> a<br /> o<br /> e<br /> a a<br /> e . .<br /> e e<br /> e<br /> .<br /> .<br /> ´ .<br /> v˜ mˆ du.o.c xˆy du.ng theo c´ch tiˆp cˆn n`y.<br /> ı o<br /> a<br /> a<br /> e a a<br /> .<br /> .<br /> ´<br /> ’<br /> ’ u e<br /> ’ ` `<br /> e e<br /> e ı o<br /> 2.2. Muc tiˆu, yˆu cˆu cua co. so. d˜. liˆu chu dˆ vˆ kinh tˆ v˜ mˆ<br /> e<br /> e `<br /> a<br /> .<br /> .<br /> 2.2.1. Muc tiˆu xˆy du.ng<br /> e a .<br /> .<br /> ’<br /> ´<br /> Muc tiˆu tˆ ng qu´t l` nh˘ m phuc vu cˆng t´c phˆn t´ du. b´o ng˘n han v` trung han<br /> e o<br /> a a `<br /> a<br /> a<br /> a ıch, . a<br /> a<br /> a<br /> .<br /> .<br /> . o<br /> .<br /> .<br /> .ng vˆ n dˆ KT-XH chu yˆu du.o.c nˆu o. Muc 1.1.<br /> ´ `<br /> ´<br /> ’ e<br /> ’<br /> nh˜<br /> u<br /> a e<br /> . e<br /> .<br /> ’<br /> Muc tiˆu cu thˆ cua viˆc xˆy du.ng CSDL n`y l` phuc vu: Xˆy du.ng B´o c´o tˆ ng quan<br /> e . e’ ’<br /> e a<br /> a a<br /> a<br /> a a o<br /> .<br /> .<br /> .<br /> .<br /> .<br /> . b´o mˆt sˆ vˆ n dˆ chu yˆu cua kinh tˆ v˜ mˆ<br /> ´ ´<br /> ´<br /> ´<br /> kinh tˆ quˆc gia theo qu´ (1); Phˆn t´ v` du a<br /> e o<br /> y<br /> a ıch a .<br /> o o a `<br /> e ı o<br /> . ´ ´ e ’ e ’<br /> .: cˆn dˆi ngˆn s´ch nh` nu.´.c, cˆn dˆi vˆn dˆu tu. ph´t triˆ n, cˆn dˆi xuˆ t nhˆp khˆ u,<br /> ’<br /> ´<br /> ´ ´ a<br /> ´<br /> ´<br /> a a<br /> a<br /> a<br /> a<br /> a<br /> nhu a o<br /> o<br /> a o o `<br /> a<br /> e’<br /> a o<br /> .<br /> ´c tˆ, t˘ng tru.o.ng kinh tˆ; t` h` san xuˆ t v` gi´ ca ch´ theo c´c<br /> ´ a<br /> ´ ınh ınh ’<br /> ´ a a ’ ınh<br /> ’<br /> c´n cˆn thanh to´n quˆ e<br /> a a<br /> a<br /> o<br /> e<br /> a<br /> a<br /> ´<br /> ´<br /> e .<br /> o a<br /> a ’ a<br /> a<br /> a<br /> ng`nh v` loai h` kinh tˆ,... (2); Xˆy du.ng kˆ hoach, theo d˜i d´nh gi´ kha n˘ng ho`n th`nh<br /> a<br /> a . ınh<br /> e<br /> a<br /> .<br /> ´<br /> ´<br /> ´<br /> ´ .<br /> ’ e e .<br /> ’<br /> c´c chı tiˆu kˆ hoach kinh tˆ v˜ mˆ chu yˆu du.o.c Quˆc hˆi thˆng qua v` giao cho Ch´ phu<br /> a<br /> e ı o ’ e<br /> o o<br /> o<br /> a<br /> ınh<br /> .<br /> ’ ch´.c thu.c hiˆn (3); Phˆn t´ kinh tˆ v˜ mˆ vˆ t` h` ph´t triˆ n kinh tˆ cua ca nu.´.c,<br /> ’<br /> ´<br /> ´<br /> tˆ u<br /> o<br /> e<br /> a ıch<br /> e ı o ` ınh ınh a<br /> e<br /> e<br /> e ’ ’<br /> o<br /> .<br /> .<br /> ´<br /> ´<br /> ´<br /> ’ a u<br /> e<br /> e’<br /> a<br /> u<br /> cua c´c v`ng kinh tˆ, nhˆ t l` c´c v`ng kinh tˆ tro ng diˆ m (4) v` phuc vu cho nh˜.ng nhiˆm<br /> e<br /> a a a u<br /> e .<br /> .<br /> .<br /> .<br /> .u kinh tˆ kh´c (5).<br /> ´<br /> vu nghiˆn c´<br /> e u<br /> e a<br /> .<br /> ´<br /> ’ u e<br /> ’ ` `<br /> 2.2.2. Yˆu cˆu cua co. so. d˜. liˆu chu dˆ vˆ kinh tˆ v˜ mˆ<br /> e `<br /> a ’<br /> e e<br /> e ı o<br /> .<br /> ’ e<br /> a. Yˆu cˆu vˆ hˆ thˆng chı tiˆu<br /> e ` ` e o<br /> a e . ´<br /> ´<br /> ’ e<br /> ’<br /> ’ `<br /> ’<br /> Hˆ thˆng chı tiˆu KT-XH cua CSDL chu dˆ phai to`n diˆn v` phuc vu du.o.c viˆc xˆy<br /> e o<br /> e<br /> a<br /> e a<br /> e a<br /> .<br /> .<br /> .<br /> .<br /> .<br /> .<br /> .ng B´o c´o tˆ ng quan kinh tˆ qu´ v` nh˜.ng hoat dˆng phˆn t´ v` du. b´o nˆu o. Muc 2.1<br /> ’<br /> ´<br /> a a o<br /> e y a u<br /> a ıch a . a e ’<br /> du<br /> .<br /> . o<br /> .<br /> .<br /> ’<br /> `<br /> ´ng chı tiˆu d´ phai du.o.c phˆn cˆ p, phˆn tˆ , phˆn r˜ nguˆ n cung cˆ p v` kha n˘ng<br /> ´<br /> ´ a ’ a<br /> ’ e o<br /> ’<br /> (1); Hˆ thˆ<br /> e o<br /> a a<br /> a o<br /> a o<br /> o<br /> a<br /> .<br /> .<br /> ´ .<br /> ´<br /> ´<br /> ’<br /> ’<br /> ’ e<br /> ’ a<br /> thu thˆp sˆ liˆu du.o.c dam bao (3); Hˆ thˆng chı tiˆu phan ´nh theo pham vi quˆc gia, theo<br /> a o e<br /> e o<br /> o<br /> .<br /> .<br /> .<br /> .<br /> .o.c phˆn loai, l`m r˜ qui tr`<br /> ´<br /> ´ ´ ´<br /> 8 v`ng kinh tˆ v` theo c´c ng`nh kinh tˆ dˆn cˆ p 2 (4); V` du .<br /> u<br /> e a<br /> a<br /> a<br /> e e a<br /> a<br /> a<br /> o<br /> ınh<br /> . a<br /> ’ u a<br /> ` n xu. l´, l`m sach d˜. liˆu, v` du.o.c tˆ ch´.c cˆp nhˆt theo n˘m, qu´ ho˘c th´ng<br /> ’ y a<br /> u e<br /> a<br /> a<br /> a<br /> y a<br /> a<br /> thu thˆp, tiˆ<br /> a<br /> e<br /> .<br /> .<br /> . o<br /> .<br /> .<br /> .<br /> .<br /> ˜<br /> ´<br /> ’ e<br /> tu` theo t´ chˆ t cua mˆi loai chı tiˆu (5).<br /> y<br /> ınh a ’<br /> o .<br /> ´ ´<br /> ’ u e<br /> b. Yˆu cˆu vˆ thiˆt kˆ co. so. d˜. liˆu<br /> e ` `<br /> a e e e<br /> .<br /> .u du.o.c lu.o.ng l´.n d˜. liˆu; Viˆc thˆm m´.i, loa i bo c´c chı tiˆu KT-XH phai<br /> ’<br /> ’ e<br /> ’<br /> CSDL phai lu<br /> o<br /> u e<br /> e<br /> e<br /> o<br /> .<br /> .<br /> .<br /> .<br /> . ’ a<br /> .i dˆ d`ng; C´ thˆ bˆ sung, su.a dˆ i cˆ u tr´c v` phˆn r˜ d˜. liˆu, cho ph´p khai th´c<br /> ’ o<br /> ’<br /> ’ a<br /> ˜ a<br /> ´<br /> ’<br /> thuˆn lo e<br /> a .<br /> o e<br /> o<br /> u a a a u e<br /> e<br /> a<br /> .<br /> .<br /> ˜<br /> `<br /> ´<br /> ´<br /> ’ e<br /> ’<br /> sˆu t`.ng chı tiˆu trong CSDL khi cˆn thiˆt; D˜. liˆu phai nhˆ t qu´n, khˆng mˆu thuˆn v`<br /> a u<br /> a<br /> e<br /> u e<br /> a<br /> a<br /> o<br /> a<br /> a a<br /> .<br /> ’<br /> ’<br /> khˆng du. th`.a; Viˆc dam bao an ninh, an to`n d˜. liˆu phai du.o.c ch´ y ngay trong giai doan<br /> o<br /> u<br /> e ’<br /> a u e<br /> u´<br /> .<br /> .<br /> .<br /> .<br /> ´t kˆ v` xˆy du.ng CSDL.<br /> ´ a a<br /> thiˆ e<br /> e<br /> .<br /> ’<br /> ’ u e<br /> c. Yˆu cˆu vˆ ch´.c n˘ng cua co. so. d˜. liˆu<br /> e ` ` u a<br /> a e<br /> .<br /> .c quan nˆi dung c´c chı tiˆu KT-XH theo th`.i gian, khˆng<br /> ’ e<br /> Cho ph´p xem mˆt c´ch tru<br /> e<br /> o a<br /> o<br /> a<br /> o<br /> o<br /> .<br /> .<br /> .<br /> `n cung cˆ p d˜. liˆu; Viˆc lu.a chon c´c chı tiˆu theo muc tiˆu ph´t<br /> ´ u e<br /> ’ e<br /> gian (dia b`n) v` theo nguˆ<br /> a<br /> o<br /> a<br /> e .<br /> e<br /> a<br /> . a<br /> .<br /> .<br /> . a<br /> .<br /> `<br /> ´<br /> ´ ´<br /> triˆ n KT-XH ho˘c theo l˜ vu.c kinh tˆ, theo th`.i gian, khˆng gian v` nguˆ n cung cˆ p sˆ<br /> e’<br /> a<br /> ınh .<br /> e<br /> o<br /> o<br /> a<br /> o<br /> a o<br /> .<br /> <br /> . ’ . ˜. ˆ<br /> ’ E E<br /> ´<br /> ˆ ˆ<br /> ˆ I ˆ<br /> CO SO DU LIEU CHU D` V` KINH TE V˜ MO<br /> .<br /> <br /> 53<br /> <br /> `<br /> e’<br /> a ıch, du. b´o du.o.c thu.c hiˆn<br /> liˆu nh˘ m tr´ chon du.o.c d˜. liˆu t`. CSDL dˆ phuc vu phˆn t´<br /> e<br /> a<br /> ıch .<br /> e<br /> .<br /> .<br /> .<br /> . u e u<br /> .<br /> . a<br /> .<br /> .<br /> .<br /> .c quan theo h` th´.c “nhˆ c, tha chuˆt”; C´ kha n˘ng chuyˆ n dˆ i dˆ d`ng tˆp<br /> ’ e<br /> ´<br /> ’<br /> ’ a<br /> mˆt c´ch tru<br /> o a<br /> ınh u<br /> a<br /> o<br /> o<br /> e’ o ˜ a<br /> a<br /> .<br /> .<br /> .<br /> .<br /> ’<br /> d˜. liˆu trong CSDL sang mˆi tru.`.ng bang t´ diˆn tu. Excel v` ngu.o.c lai; Cho ph´p thu.c<br /> u e<br /> o<br /> o<br /> ınh e ’<br /> a<br /> e<br /> .<br /> .<br /> . .<br /> .<br /> ’ e<br /> hiˆn c´c phˆn t´ d˜. liˆu theo c´c chı tiˆu du.o.c lu.a chon du.´.i nh˜.ng h` th´.c tru.c quan<br /> e a<br /> a ıch u e<br /> a<br /> o<br /> u<br /> ınh u<br /> .<br /> .<br /> . .<br /> .<br /> .<br /> `<br /> ´<br /> ’<br /> ’<br /> ’<br /> co. ban nhu.: bang biˆ u, dˆ thi; Dˆ d`ng chuyˆ n kˆt qua phˆn t´ du. b´o d˜. liˆu sang c´c<br /> e’<br /> o . ˜ a<br /> e<br /> e’ e<br /> a ıch, . a u e<br /> a<br /> .<br /> .c hiˆn nh˜.ng ph´p thˆng kˆ, t´ to´n<br /> ´<br /> trang t`i liˆu MsWord, Powerpoint, pdf; Cho ph´p thu<br /> a e<br /> e<br /> e<br /> u<br /> e<br /> o<br /> e ınh a<br /> .<br /> .<br /> .<br /> .n gian v` xˆy du.ng biˆ u th´.c to´n trˆn hˆ thˆng c´c chı tiˆu; C´ mˆ ta d˜. liˆu (meta data)<br /> ’<br /> ´<br /> ’ a a<br /> ’ e<br /> do<br /> e<br /> u<br /> a<br /> e e o<br /> a<br /> o o ’ u e<br /> .<br /> .<br /> .<br /> ’ e<br /> ’ ` a<br /> cho c´c chı tiˆu trong CSDL chu dˆ v` du.o.c t´ ho.p v`o trong ch´ CSDL d´; C´ kha n˘ng<br /> a<br /> e<br /> o o ’ a<br /> ıch .<br /> a<br /> ınh<br /> .<br /> ˜<br /> ´<br /> ’ a<br /> ’<br /> hu.´.ng dˆn tru.c tuyˆn (on line) viˆc khai th´c su. dung CSDL; Kha n˘ng bao mˆt an to`n d˜.<br /> o<br /> a<br /> e<br /> e<br /> a ’ .<br /> a<br /> a u<br /> .<br /> .<br /> .<br /> .o.c coi tro ng cu thˆ : ngu.`.i su. dung chı c´ thˆ khai th´c su. dung d˜. liˆu, chı c´ ngu.`.i<br /> ’<br /> ’<br /> ’ o e<br /> ’ o<br /> liˆu du .<br /> e<br /> o ’ .<br /> a ’ .<br /> u e<br /> o<br /> .<br /> .<br /> . e<br /> .<br /> ’<br /> ’<br /> ’ o .<br /> ’<br /> a o<br /> u e a<br /> a u<br /> quan tri CSDL m´.i c´ kha n˘ng xem, su.a, xo´, bˆ sung d˜. liˆu v`o CSDL v` c˜ng chı c´ ho<br /> o o ’ a<br /> .<br /> .<br /> ’<br /> ´<br /> ’ a<br /> ’ e<br /> m´.i c´ kha n˘ng thˆm, b´.t, phˆn cˆ p, phˆn tˆ lai c´c chı tiˆu KT-XH trong CSDL...<br /> o o<br /> e<br /> o<br /> a a<br /> a o . a<br /> ´<br /> ’ e<br /> 2.3. Mˆ ta hˆ thˆng chı tiˆu KT-XH<br /> o ’ e o<br /> .<br /> `<br /> ’<br /> ’ e<br /> ’<br /> CSDL n`y gˆ m khoang 1000 chı tiˆu KT-XH v` du.o.c phˆn th`nh 14 khoan muc ch´<br /> a o<br /> a<br /> a<br /> a<br /> ınh<br /> .<br /> .<br /> .o.ng phˆn theo c´c<br /> ´<br /> ´<br /> ´<br /> ’<br /> ’<br /> sau dˆy: (1) Hˆ thˆng t`i khoan quˆc gia; (2) San xuˆ t: gi´ tri, san lu .<br /> a<br /> e o<br /> a<br /> o<br /> a<br /> a . ’<br /> a<br /> a<br /> .<br /> .o.ng nˆng nghiˆp phˆn theo v`ng l˜nh thˆ ; gi´ tri san lu.o.ng<br /> ’ a . ’<br /> ´ a . ’<br /> o<br /> e<br /> a<br /> u<br /> a<br /> o<br /> ng`nh kinh tˆ; gi´ tri, san lu .<br /> a<br /> e<br /> .<br /> .<br /> ’<br /> ´; (3) C´c san phˆ m h`ng ho´ ch´ phˆn theo c´c<br /> ’<br /> cˆng nghiˆp phˆn theo c´c loai h` kinh tˆ<br /> o<br /> e<br /> a<br /> a<br /> e<br /> a<br /> a<br /> a<br /> a ınh a<br /> a<br /> .<br /> . ınh<br /> ´<br /> ´<br /> a a ’<br /> a ’<br /> a ’<br /> a<br /> a e u<br /> ng`nh kinh tˆ; (4) Nˆi thu.o.ng v` vˆn tai; (5) Gi´ ca (gi´ san xuˆ t, gi´ tiˆu d`ng); (6) Ngoai<br /> a<br /> e<br /> o<br /> .<br /> .<br /> .<br /> ’<br /> ’<br /> ’ o<br /> ’<br /> ´<br /> ´<br /> ´<br /> ’ e<br /> ’<br /> thu.o.ng (h`ng ho´ nhˆp khˆ u, xuˆ t khˆ u chu yˆu; kim ngach xuˆ t nhˆp khˆ u; tˆ ng san lu.o.ng<br /> a<br /> a a<br /> a<br /> a<br /> a<br /> a<br /> a<br /> a<br /> .<br /> .<br /> .<br /> .<br /> ´<br /> ´<br /> o<br /> e a<br /> ıch y a ’ o .<br /> a<br /> ngoai thu.o.ng v` chı sˆ gi´...); (7) Lao dˆng viˆc l`m; (8) T´ lu˜ t`i san cˆ dinh; (9) Cˆn<br /> a ’ o a<br /> .<br /> .<br /> .<br /> `<br /> ´<br /> `<br /> ’ .<br /> ’<br /> ’<br /> a e a<br /> o<br /> a<br /> a<br /> ınh<br /> dˆi nguˆ n- su. dung theo gi´ hiˆn h`nh; (10) Dˆu tu. nu.´.c ngo`i; (11) T`i khoan ch´ phu;<br /> o<br /> o<br /> a<br /> .<br /> .ng, du. tr˜. tiˆn tˆ v` t´ dung.<br /> ’ a ` e<br /> (12) C´n cˆn thanh to´n; (13) Ty gi´ tiˆn tˆ; (14) Cung u<br /> a a<br /> a<br /> e .<br /> ´<br /> e .<br /> . u ` e a ın .<br /> . (1) dˆn (8) c´ thˆ thu thˆp du.o.c chu yˆu t`.<br /> `<br /> ´<br /> ´<br /> ’ e<br /> ’<br /> ’ e u<br /> e<br /> o e’<br /> a<br /> Gˆn 600 chı tiˆu thuˆc c´c khoan muc t`<br /> a<br /> o a<br /> .<br /> . u<br /> .<br /> .<br /> ’ng cuc Thˆng kˆ v` mˆt sˆ bˆ quan l´ ng`nh nhu. Nˆng nghiˆp, Cˆng Thu.o.ng, Xˆy du.ng;<br /> ´<br /> o<br /> e<br /> o<br /> a<br /> Tˆ<br /> o<br /> o<br /> e a o o o ’ y a<br /> .<br /> . ´ .<br /> .<br /> .<br /> ’<br /> ’ i v` Tˆ ng cuc Hai quan, trong khi d´ ho.n 400 chı tiˆu thuˆc c´c khoan muc<br /> ’<br /> ’ e<br /> ’<br /> o a<br /> Giao thˆng vˆn ta a o<br /> o<br /> a<br /> o<br /> .<br /> .<br /> .<br /> .<br /> ´ .<br /> ’<br /> c`n lai phai du.o.c thu thˆp t`. Bˆ Kˆ hoach v` Dˆu tu., Bˆ T`i ch´<br /> o .<br /> a u o e<br /> a `<br /> a<br /> o a<br /> ınh, Ngˆn h`ng Nh` nu.´.c<br /> a a<br /> a o<br /> .<br /> .<br /> .<br /> .<br /> ´ ´ ´<br /> ´ ´<br /> ´<br /> e o e o<br /> ın<br /> y ` e o e<br /> e .<br /> a a<br /> e<br /> v` mˆt sˆ tˆ ch´.c kinh tˆ quˆc tˆ c´ uy t´ nhu. Qu˜ tiˆn tˆ quˆc tˆ (IMF), Ngˆn h`ng thˆ<br /> a o o o u<br /> . ´ ’<br /> .i (WB).<br /> gi´<br /> o<br /> ´ ´<br /> ´<br /> ’ u e<br /> ’ ` `<br /> 2.4. Thiˆt kˆ co. so. d˜. liˆu chu dˆ vˆ kinh tˆ v˜ mˆ<br /> e e<br /> e e<br /> e ı o<br /> .<br /> ´ ´<br /> a. Thiˆt kˆ c´c quy tr`<br /> e e a<br /> ınh<br /> ’<br /> `<br /> ’ `<br /> ’ a `<br /> ’<br /> Viˆc xˆy du.ng CSDL chu dˆ khˆng do.n thuˆn chı l` nh˘ m tao ra san phˆ m tin hoc m`<br /> e a<br /> e o<br /> a<br /> a<br /> a<br /> a<br /> .<br /> .<br /> .<br /> .<br /> .n l` x´c lˆp du.o.c c´ch nh` lˆp du.o.c kˆ hoach: xˆy du.ng, su. dung, quan tri,<br /> ´ .<br /> ’ .<br /> ’<br /> quan trong ho a a a<br /> ın; a<br /> a<br /> .<br /> .<br /> . a<br /> .<br /> . e<br /> .<br /> .<br /> ´<br /> ´<br /> ´<br /> ’<br /> ’ ` `<br /> bao tr` v` nˆng cˆ p CSDL chu dˆ vˆ sau n`y. Qu´ tr` n`y rˆ t ph´.c tap v` luˆn luˆn tiˆp<br /> ı a a<br /> a<br /> e e<br /> a<br /> a ınh a a<br /> u .<br /> a o<br /> o<br /> e<br /> ˜ o<br /> `<br /> ´<br /> ´<br /> diˆn v´.i trong tˆm l` c´c nhu cˆu phˆn t´ du. b´o kinh tˆ v˜ mˆ lˆ y d˜. liˆu l`m c˘n c´..<br /> e<br /> a a a<br /> a<br /> a ıch, . a<br /> e ı o a u e a<br /> a u<br /> .<br /> .<br /> .p v` kˆt<br /> ’<br /> ´<br /> ´<br /> ’ ` `<br /> ’ ` o a e e ` o<br /> Do CSDL chu dˆ vˆ kinh tˆ v˜ mˆ l` CSDL chu dˆ dˆc lˆp nˆn yˆu cˆu tˆ ng ho a e<br /> e e<br /> e ı o a<br /> e . .<br /> a<br /> .<br /> `<br /> ` u e<br /> `<br /> ´i d˜. liˆu, dˆ ng bˆ ho´ c´c nguˆ n d˜. liˆu, phˆn dinh v` dˆ ng nhˆ t c´c hˆ quan tri cua c´c<br /> ´ a e<br /> ’<br /> ’ a<br /> a .<br /> nˆ u e<br /> o<br /> o<br /> o a a<br /> o<br /> a o<br /> a<br /> .<br /> .<br /> .<br /> .<br /> .<br /> ’<br /> ´<br /> ´<br /> ’ `<br /> CSDL t´c nghiˆp nhu. l` c´c cˆng cu chuˆ n dˆ phuc vu cho CSDL chu dˆ, chu.a nhˆ t thiˆt<br /> a<br /> e<br /> a a o<br /> a e’<br /> e<br /> a<br /> e<br /> .<br /> .<br /> .<br /> .<br /> .o.c d˘t ra, nhu.ng cˆn phai xˆy du.ng siˆu d˜. liˆu (meta data), xˆy du.ng quy tr` dˆ thu<br /> `<br /> ’ a<br /> a<br /> e u e<br /> a<br /> ınh e’<br /> du . a<br /> .<br /> .<br /> .<br /> .<br /> . liˆu; lu.a chon, xˆy du.ng v` thu.c hiˆn c´c phu.o.ng ph´p xu. l´ l`m sach v` tinh loc<br /> ’ y a<br /> thˆp d˜ e<br /> a u .<br /> a<br /> a .<br /> e a<br /> a<br /> a<br /> .<br /> .<br /> .<br /> .<br /> .<br /> .<br /> .<br /> ´<br /> d˜. liˆu, Thu.c hiˆn du.o.c c´c nˆi dung cˆng viˆc n`y c˜ng l` viˆc l`m kh´ ph´.c tap, tˆn k´m<br /> u e<br /> e<br /> a o<br /> o<br /> e a u<br /> a e a<br /> a u .<br /> o e<br /> .<br /> .<br /> .<br /> .<br /> .<br /> .<br /> .<br /> <br /> 54<br /> <br /> ˜<br /> ˆ ˘<br /> `<br /> DO VAN THANH<br /> <br /> `<br /> ´<br /> `<br /> ´<br /> ´<br /> ´<br /> v` mˆ t nhiˆu th`.i gian nhˆ t l` trong bˆi canh d˜. liˆu kinh tˆ o. nu.´.c ta c`n tan m´t, chˆ ng<br /> a a<br /> e<br /> o<br /> a a<br /> o ’<br /> u e<br /> e ’<br /> o<br /> o ’<br /> a<br /> o<br /> .<br /> . hiˆn nay. Du.´.i dˆy han chˆ chı gi´.i thiˆu<br /> `<br /> ˜<br /> `<br /> ´<br /> ch´o, khˆng dˆ ng bˆ, tiˆm ˆ n nhiˆu mˆu thuˆn nhu e<br /> e<br /> o<br /> o<br /> o ` a<br /> e<br /> a<br /> a<br /> o a .<br /> e ’ o<br /> e<br /> . e ’<br /> .<br /> .<br /> . liˆu t`. c´c nguˆ n v`o CSDL chu dˆ vˆ kinh tˆ v˜ mˆ.<br /> `<br /> ´<br /> ’ ` `<br /> e e<br /> e ı o<br /> quy tr` thu thˆp v` cˆp nhˆt d˜ e u a<br /> ınh<br /> a a a<br /> a u .<br /> o a<br /> .<br /> .<br /> .<br /> <br /> b. Mˆ h` phˆn r˜ ch´.c n˘ng<br /> o ınh a a u a<br /> <br />