Ka Mana o nā Keena'ē aʻe i nāʻikepiliʻikepili

Ke weheʻia kahi puka'ē aʻe i kahi honua o kaʻikepili

Hiki i nā mea hoʻolālā hoʻonohonohoʻike ke hoʻohana i nā kī i ke kūkuluʻana i nāʻikepili pūnaewele. Ma waena o nā kī nui o kēia mau kī, he mau kī nui a me nā kī'ē aʻe. ʻO ka helu keleponaʻikepili kahi māla i kahi papa pili e pili ana i ka papahana mua o kahi papa'ē aʻe. No ka hoʻomaopopoʻana i kahi hanaʻana o kahi kī'ē, e nānā pono kākou i ka manaʻo o kahi pūnaewele pili.

Nā kumuhana o kaʻikepili

Ma ka pilina pili pili, e mālamaʻia kaʻikepili i nā papa i loaʻa nā lālani a me nā koluma, e maʻalahi ka huli a me ka manipula. He wahi helu maʻamau kēia ma hope o ka manaʻo o kahi pūnaewele pili (pilina pilikino, i manaʻoʻia e EF

Ua hoʻopiliʻia ma IBM i ka makahiki 1970), akā,ʻaʻole ia ke kumu o kēiaʻatikala.

No nā hana kūikawā (a me nā nonemathmath), kahiʻikepili pili waiwai "pili" i nā lālani a me nā koluma. Eia hou-a maanei kahi i maʻa ai ka maikaʻi - nui nā pūnaeweleʻike i hoʻohālikelikeʻia i hiki ai i nāʻikepili ma kahi papa ke hiki i nāʻikepili i kekahi papa'ē aʻe. ʻO kēia hiki ke hana i ka pilina ma waena o nā papaʻaina ka mana maoli o kahi pūnaewele pili.

Ke hoʻohanaʻana i nā Kele'ē

ʻO ka hapa nui o nā papa,ʻo ka mea nui ma nāʻikepili koʻikoʻi, he mau kī nui. ʻO nā papahana i hoʻolālāʻia e komo i nā papa'ē aʻe, he pono ke loaʻa i kahi kī'ē aʻe.

No ka hoʻohanaʻana i kaʻikepili pūnaeweleʻo Northwinds, eia kahi hapa o ka papahana Hua:

ʻO ka papahana huahanaʻo Northwind Database
ProductID Inoa mea kūʻai Kāpeka CategoryID NuiPerU UnitPrice
1 Chai 1 10 pahu x 20 mau peke 18.00
2 Huli 1 24 - 12 oz mau'ōmole 19.00
3 ʻO ka sygne Aniseed 2 12 - 550 ml mau omole 10.00
4 ʻO Chef Anton's Cajun Seasoning 2 48 - 6 'ai kek 22.00
5 ʻO Chef Anton's Gumbo Mix 2 36 pahu 21.35
6 Kākoʻo nuiʻo Grandma's Boysenberry 2 12 - 8 oz 25.00
7 ʻOʻAnakala Bobʻo Organic Dried Pears 7 12 - 1 lb pkgs. 30.00

ʻO ka huahana ProductID kēia kī nui o kēia papa. Hāʻawi ia i kahi ID hiʻona i kēlā me kēia huahana.

Aia kēia papaʻaina i kahi kālani kīlahi'ē aʻe,ʻo CategoryID . ʻO kēlā me kēia huahana i ka pāʻani Hua e pili ana i kahi komo i ka papaʻaina e ho'ākāka ana i kēlāʻano huahana.

E hoʻomaopopo i kēia helu mai ka papahana Papahanaʻikepili:

Kahulanui Database's Categories Papa Kūkākūkā
Kāpeka CategoryID CategoryName Hōʻike
1 Nā mea inu Nā mea inu, nā kalo, nā teas, a me nā ales
2 ʻO Condiments ʻO nā meaʻono,ʻoluʻolu, pāhola, a me nā meaʻono
3 Aloha Nā Dessert, nā candies, a me nā meaʻala
5 Nā Mea Laʻa Lapaʻa ʻO Cheeses

ʻO ka Cedar column ko kēia kī nui. (ʻAʻole he kī'ē aʻe no ka meaʻaʻole pono e komo i kahi papa'ē aʻe.)ʻO kēlā me kēia kī kī'ē aʻe i ka papahana Hua e pili ana i kahi kī nui i ka papaʻaina. No ka laʻana, hāʻawiʻia ka Chai huahana i kaʻano "Nā inu", oiaiʻo Aniseed Syrup i loko o ka māhele Condiments.

ʻO kēiaʻano pilina e hana i nāʻano he nui e hoʻohana a hoʻohana hou i nāʻikepili i loko o kaʻikepili pili.