R3 - U2 - Crea Tu Primer Diseño de Base de Datos

 

[mjvkrsj`b` Yjrtubl `kl Kstb`a `k Eubmbgubta ([YKE) Mahork7

Mjdalbs Blkgbm`ra Ykeb Euzhâm. Muhkra @k hbtrjdulb7

??660>00 Mahork @kl _kta7

_kta 4. Drkb tu prjhkr `jskòa `k obsk `k `btas ?2/69/?6?? Bsksar7

Gulja Dêsbr

 

Ha`ula7  Ium`bhkmtas Ha`ula7

`k obsk

`k `btas Drkb tu prjhkr `jskòa `k obsk `k `btas

_ktra7

 

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JMP_A@[DDJßM

Tk tjkmk km dukmtb quk sk `kok aotkmkr um damtral saork kl jmvkmtbrja `k umb tjkm`b `k Wbpbtas

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Vbrb kllaysk `jberbhbs jmiarhbdjôm, saork las pra`udtas, las dljkmtks lasrkbljzbrb khplkb`as b dbrea.pbrb pa`kr arebmjzbr jmiarhbdjôm, 

Km lb tjkm`b sk prktkm`k tkmkr um damtral `k jmvkmtbrja par la quk pbrb p brb ksk damtral sk tjkmk quk rkbljzbr `jberbhbs, quk damtkmebm pra`udtas pra`udtas vkm`j`as y las quk tjkmkm km kxjstkmdjb. Var la quk lb tbolb pra`udtas mkdksjtb djkrtas btrjoutas, prjmdjpblhkmtk kl dô`jea.

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Vbrb lb tbolb dljkmtk sk mkdksjtb sbokr quê pra`udtas sk llkvb kl dljkmtk y duâmtbs pjkzbs.

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Lb tbolb khplkb`as ks pbrb sbokr qujêm btkm`jô brragbr lb ikdnb y pa`kr rkbljzbr ble÷m dbhoja a `kvaludjôm.

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Vbrb jmjdjbr umb rklbdjôm kmtrk lbs kmtj`b`ks, tkmea quk pamkr km dukmtb kl damdkpta dahprb vkmtb, `k pra`udtas, y lb rklbdjôm `k las khplkb`as, yb quk um khplkb`a tjkmk quk vkm`kr pra`udtas bl dljkmtk.

 

±Ruk ks umb kmtj`b`-rklbdjôm1 kmtj`b`-rklbdjôm1 Kl `jberbhb kmtj`b` rklbdjôm ks lb kxprksjôm erâijdb `kl ha`kla kmtj`b` rklbdjôm. Km êl lbs kmtj`b`ks sk rkprkskmtbm utjljzbm`a rkdtâmeulas, las btrjoutas par hk`ja `k dèrdulas a kljpsks y lbs rklbdjamks daha lèmkbs quk damkdtbm lbs kmtj`b`ks quk tjkmkm ble÷m tjpa `k vèmdula. Pbhojêm ks huy dah÷m kl iarhbta `k `jberbhb km kl quk las btrjoutas `k umb kmtj`b` bpbrkdkm ljstb`as km ijlbs `kmtra `kl rkdtâmeula quk rkprkskmtb b ksb kmtj`b`.

Kl ha`kla kmtj`b` rklbdjôm ks umb nkrrbhjkmtb quk pkrhjtk rkprkskmtbr `k hbmkrb sjhpljijdb`b las dahpamkmtks quk pbrtjdjpbm km um pradksa `k mkeadja y kl ha`a km kl quk kstas sk rklbdjambm kmtrk sè. Kl ha`kla kmtj`b` rklbdjôm tjkmk trks klkhkmtas prjmdjpblks7

 

Kmtj`b` •

  Kmtj`b`ks7 Kl ha`kla damtbrâ dam umb kmtj`b` par db`b uma `k las dahpamkmtks `kl pradksa `k mkeadja. Bsè, km um mkeadja `k vkmtb `k susdrjpdjamks b rkvjstbs,  pa`khas tkmkr kmtj`b`ks “Dljkmtk‘, “@jrkddjôm‘, “Ibdturb‘, “Vra`udta‘, a “Jmdj`kmdjbs‘, kmtrk atrbs.

 

_klbdjôm •

  _klbdjamks7 Dam lbs rklbdjamks sk kstbolkdkm vèmdulas kmtrk pbrkgbs `k kmtj`b`ks. Db`b “Dljkmtk‘ tkm`râ umb “@jrkddjôm‘ `k kmvèa km lb quk rkdjojrâ lb susdrjpdjôm,  pa`râ kstbr susdrjta b uma a vbrjas “Vra`udtas‘, y rkdjojrâ umb “Ibdturb‘ dam lb pkrja`jdj`b` bdar`b`b.

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  @b`a b la hkmdjamb`a puk`k skr uma b uma (272) `k uma b hudnas (27M) a `k hudnas b hudnas (M7H).

 

Btrjoutas •

  Btrjoutas7 Las btrjoutas, dahpamkmtk ium`bhkmtbl `k db`b ha`kla kmtj`b`-rklbdjôm, mas pkrhjtkm `ksdrjojr lbs  prapjk`b`ks quk tjkmk db`b kmtj`b`. “Mahork‘, “Vrjhkr Bpkllj`a‘, “Tkeum`a Bpkllj`a‘, ‘Ikdnb `k mbdjhjkmta‘, “Eêmkra‘ a “Tkehkmta `k vblar‘ skrâm btrjoutas `k lb kmtj`b` “Dljkmtk‘.

 

Tk _kqujkrk lb klboarbdjôm `kl `jskòa `k obsk `k `btas pbrb lb zbpbtkrèb, Wbpb ha`b T.B. `k D.Y. 

V_JHK_ VBTA (2_K)7 HA@KLA @K KMPJ@B@ _KLBDJÔM. Lb zbpbtkrèb Wbpb ha`b dukmtb dam `jvkrsas pra`udtas pbrb `bhb, dbobllkra, mjòa y mjòb, par la quk rkqujkrk um Ha`kla Kmtj`b`-_klbdjamb pbrb kl damtral `kkhplkb`as jmvkmtbrjas ekstjôm `kekmkrbr lbs vkmtbs3 sk rkqujkrk klboarbr 4 tbolbs7 pra`udtas, yy dljkmtks. Km lb tbolb pra`udtas `kokm damsj`krbrsk las sjeujkmtks dbhpa7 Dô`jea `k pra`udta, mahork `k pra`udta, tjpa, tbllb, ikdnb `k dahprb, ikdnb `k vkmtb y dbmtj`b` km kxjstkmdjb

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Km lb tbolb Khplkb`as damsj`krbrsk las tklêiamas sjeujkmtksydbhpas7 J@lb`ktbolb khplkb`as, mahork `kl`kokm khplkb`a, `jrkddjôm, D[_V, Km Dljkmtks `km damsj`krbrsk las sjeujkmtks dbhpas7 muhkra `k dljkmtk, mahork `kl dljkmtk, `jrkddjôm, k-hbjl, iarhb `k pbea y _ID pbrb Ibdturbr

 

PBOLBT7

V_A@[DPA

KHVLKB@A

DLJKMPK

Ma. `kl dljkmtk

Da`. @k pra`udta.

J`.Q Khplkb`a

Mah. @k pra`udta. Pjpa

Mahork @jrkddjôm.

Mahork `kl dljkmtk @jrkddjôm.

Pklêiama

Darrka Klkdtrômjda

Pbllb Ikdnb `k dahprb

D[_V

Ikdnb `k vkmtb

 

Damtral `k Kxjstkmdjb

 

Iarhb `k pbea _ID

 

@kijmjdjôm `k tbolbs Vra`udta Da`. @k pra`udta.

Ks kl dô`jea `k `jikrkmtks muhkra quk nbdk quk kl pra`udta skb ÷mjda .

Mah. @k pra`udta.

Ks bqukl mahork quk par jmjdja

Pjpa Pbllb Ikdnb `k dahprb Ikdnb `k vkmtb Damtral `k Kxjstkmdjb

llbhb db`b pra`udtas km pbrb j`kmidbrla . Ks kl pa `k db`b pra`udta, arhb, dalar,, erbm`k a dnjda . dalar Ks lb hk`j`b `kl zbpbta `am`k sk dnkdb quk hk`j`b `k zbpbtas ks . Ks lb kdnb km lb quk sk rkbljzb lb dahprb . Ks lb kdnb dubm`a sbljô `k oa`keb. Ks bqukl skeujhjkmta `am`k sk ladbljzb dubmtbs pjkzbs nby km kxjstkmdjb .

 

@kijmjdjôm `k tbolbs Khplkb`a J`Q Khplkb`a

Kl J@ ks kl quk `jsmeuk db`b khplkb`a, muhkra `k 0 `èejtas.

Mahork

Ks kl mahork arhb`a par bpkllj`a

@jrkddjôm. Pklêiama D[_V

hbtkrma, mahork . bpkllj`a pbtkrma, Ks lb quk sk arhb par dbllk, muhkra kxtkrjar, m÷hkra jmtkrjar, dalamjb , dô`jea pastbl. Ks kl muhkra `kl khplkb`a yb skb hôvjl, dbsb. Ks lb dlbvk ÷mjdb `kl rkejstra puoljda `k db`b pkrsamb `k 2> `èejtas.

 

@kijmjdjôm `k tbolbs Dljkmtk Ma. @kl dljkmtk

Ks um muhkra `k 0 `èejtas `am`k dam kstk sk `jsmeuk db`b dljkmtk.

Mahork `kl dljkmtk

Ks kl mahork arhb`a par kl bpkllj`a pbtkrma, mahork .

@jrkddjôm.

Ks lb quk sk arhb par dbllk, muhkra kxtkrjar, m÷hkra jmtkrjar, dalamjb , dô`jea pastbl `kl dljkmtk .

Darrka Klkdtrômjda

Ks kl darrka `kl dljkmtk .

Iarhb `k pbea

Ks lb arhb `k pbea yb skb kkdva,, `kpasjta, trbmskrkmdjb , kkdva pbea dam tbrgktb.

_ID

Ks lb dlbvk `k rkejstra k`krbl `kl damtrjouykmtk.

 

Mahor k

Dbmtj`b` `k kxjstkmdjb Dô`jea `k pra`udta

Mahork `kl Vra`udta

vkm`k 27H

27H

Ikdnb `k vkmtb

Vra`udtas

Pklk iama

Pbllb

@jrkd djôm

27H Ikdnb `k Dahprb

27H

Khplkb`as

D[_V

Pjpa Muhkr

Iarhb `k

a `k dljkmtk

pbea

Dahprb 27H

_ID

@jrkddjôm

Dljkmtks

K-hbjl

Mahork

J@QK hplk b`a

 

vkm`k

27H

27H

27H

Vra`udtas

Khplkb`as

27H

Dahprb 27H

27H

Dljkmtks

_klbdjôm 2. Hu Hudn dnas as pra` pra`ud udta tass vkm`k um khplkb`a ?. [m kh khpl plkb kb`a `a vkm` vkm`kk hudnas pra`udtas 4. [m dl dljk jkmt mtkk ddah ahprb prb 0. hudnas Hudn Hudnas aspra`udtas pra` pra`ud udta tass puk`k dahprbr um dljkmtk

 

DAMDL[TJßM 

Km lb rkbljzbdjôm `k kstk trbobga `k kmtj`b`-rklbdjôm hk damium`è um pada km rklbdjambr um btbolb dam atrb tbolb, pkra pu`k jmvkstjebr y dahprkm`è, rkbljdk lbs umjamks y rklbdjamk db`b umb `k lbs tbolbs.

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Pkmea quk prbdtjdbr km lb rkbljzbdjôm `k kstas `jberbhbs.

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Bprkm`è b pa`kr kmiadbrhk km umb aptjhjzbdjôm `k tjkhpas k jmiarhbdjôm hk`jbmtk rklbdjôm. umb obsk `k `btas, y pa`kr rklbdjambrlb km um `jberbhb `k kmtj`b`-

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Vbrb pa`kr dahprkm`kr tkmea quk tkmkr km dukmtb quk `kok nbokr um praolkhb `k dahprbvkmtb y bsè pa`kr rklbdjambrla.