Usoro nhazi data nwere ike ịkọwapụta na database
A na-aghọtakarị ihe nnọchianya data maka nghọtahie n'ihi na ọ pụtara ihe dị iche na ndị na-ere ihe dị iche. A na-ejikarị ya eme ihe na njikọ Oracle database.
Nzube zuru oke nke usoro nhazi data
N'ozuzu, ihe atụ data na- akọwa ebe nchekwa nchekwa zuru ezu, tinyere software RDBMS, usoro tebụl, usoro echekwara yana ọrụ ndị ọzọ. Ndị nchịkọta data nwere ike ịmepụta otutu ihe otu nchekwa data maka nzube dị iche iche.
Dịka ọmụmaatụ, otu nzukọ na nchekwa data ndị ọrụ nwere ike ịnwe ọnọdụ atọ dị iche iche: mmepụta (iji nweta data dị ndụ), tupu emepụta (iji nyochaa ọrụ ọhụrụ tupu ịtọhapụ n'ime mmepụta) na mmepe (nke ndị na-emepụta ihe nchekwa data jiri rụọ ọrụ ọhụrụ ).
Usoro Nchịkọta Oracle
Ọ bụrụ na ị nwere nchekwa data Oracle , ị maara na ihe nchekwa data pụtara ihe a kapịrị ọnụ.
Ọ bụ ezie na nchekwa data n'onwe ya na-agụnye ihe niile ngwa data na metadata echekwa na faịlụ anụ ahụ na ihe nkesa, ihe atụ bụ ngwakọta nke software na ebe nchekwa ejiri iji nweta data ahụ.
Dịka ọmụmaatụ, ọ bụrụ na ị banye na nchekwa data Oracle, nbanye gị bụ ihe atụ. Ọ bụrụ na ịbanye ma ọ bụ mechie kọmputa gị, ihe atụ gị agwụla, mana nchekwa data - yana data gị - na-anọgide na-emebi emebi. Ihe atụ Oracle nwere ike ịnweta naanị otu nchekwa data n'otu oge, ebe nchekwa data Oracle nwere ike ịnweta site na ọtụtụ oge.
Ọnọdụ SQL Server
Aghachite SQL Server na -apụtakarị otu nhazi nke SQL Server. Ọ bụghị nchekwa data n'onwe ya; kama nke ahụ, ọ bụ software eji kee nchekwa data. Ịnọgide na-enwe otutu ihe nwere ike bara uru mgbe ị na-ejikwa ihe nkesa maka ihe ọ bụla nwere ike ịhazi maka ebe nchekwa na iji CPU-ihe ị na-apụghị ime maka nkwụnye data ọ bụla n'ime ihe atụ SQL Server.
Ntọala Ntọala vs. Usoro Ntọala
O nwekwara ike ịba uru iche echiche banyere ihe atụ na ọnọdụ nchekwa data. Atụmatụ ahụ bụ metadata nke na-akọwa nhazi nchekwa data na otu esi esi hazie data ahụ. Nke a na-agụnye tebụl ya na ogidi ha na iwu ọ bụla nke na-achịkwa data ahụ. Dịka ọmụmaatụ, onye ọrụ na tebụl na nchekwa data nwere ike inwe ogidi maka aha, adreesị, ID ọrụ na nkọwa ọrụ. Nke a bụ usoro, ma ọ bụ atụmatụ, nke nchekwa data.
Ihe atụ nke nchekwa data bụ ihe ntanetị nke ihe dị n'ime oge ọ bụla, tinyere data n'onwe ya na mmekọrịta ya na data ndị ọzọ na nchekwa data.