Kuxazululiwe: bonisa abasebenzisi

I-athikili Ngokusebenzisa i-SQL Yokuhlaziywa Kwethrendi Yemfashini:

Ukuhlola nokubikezela izitayela zemfashini bekulokhu kubalulekile embonini yezemfashini. Ngokuthuthuka kobuchwepheshe, amasu ahlukahlukene asetshenziswa manje kunangaphambili. Ngokuhlanganisa ukusetshenziswa kwezizindalwazi nokuzihlaziya nge-SQL (Ulimi Oluhlelekile Lombuzo), singathola eminye imininingwane enenzuzo. I-SQL isivumela ukuthi sifinyelele, silawule, futhi sihlaziye amanani amakhulu edatha ngempumelelo. Lesi sihloko sizokuqondisa ngokusebenzisa i-SQL ukuze uhlaziye amathrendi emfashini kahle futhi unikeze imisebenzi ehlukene nemitapo yolwazi engakusiza.

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Kuxazululiwe: dala umsebenzisi ngokufinyelela kude

Ukudala umsebenzisi onokufinyelela kude ku-SQL kungomunye wemisebenzi ebalulekile okumele unjiniyela wasemuva avame ukuwenza. Lokhu akunikezeli ukufinyelela kubasebenzisi abathile kuphela futhi kugcine ubuqotho nokuphepha kwesistimu, kodwa futhi kusiza ukusungula uhlelo lokuphatha lwedathabhesi esabalalisiwe olungafinyelelwa ezindaweni ezikude nezihlukene, okwengeza ukuguquguquka nokusebenziseka kalula emisebenzini ehlukahlukene. Lokhu kusebenza kuvame ukunconywa ezindaweni lapho amaqembu asatshalaliswa khona emhlabeni wonke, futhi ukufinyelela kusizindalwazi esimaphakathi kuyisidingo esiqhubekayo.

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Kuxazululiwe: setha kabusha inani lokunyuka okuzenzakalelayo

Amanani akhulayo ngokuzenzakalela ayingxenye ebalulekile yesistimu yedathabheyisi, ikakhulukazi uma usebenza ne-SQL (Ulimi Lombuzo Ohleliwe). Lesi sici sinenzuzo njengoba sikuvumela ukuthi ukhiqize ngokuzenzakalelayo amanani ezinombolo ahlukile kumugqa ngamunye kuthebula lesizindalwazi. Nakuba lesi ngokuvamile kuyisici esiwusizo, kungase kube nezikhathi lapho ungase ufise ukusetha kabusha inani lokunyuswa okuzenzakalelayo kusizindalwazi se-SQL. Lokhu kungaba usizo ikakhulukazi uma okufakiwe kusizindalwazi kususwa, futhi ufuna ukugcina izinombolo ezikhuphukayo ziqondaniswe ngendlela efanele, noma uma usetha kabusha isizindalwazi sibe esimweni esimisiwe. Lesi sihloko sizochaza ngezinyathelo zokufeza lokhu futhi sihlole imiyalo ethile ye-SQL ehilelekile.

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Kuxazululiwe: dala umsebenzisi nge-mysql_native_password

Njengokwezidingo zakho, nansi ifomethi yokudala i-athikili mayelana nokudala umsebenzisi nge-mysql_native_password ku-MySQL:

I-MySQL ingenye yezinhlelo zomhlaba ezihamba phambili zokulawula isizindalwazi esihlobene nemithombo evulekile futhi yakha umgogodla wezinkundla ezihlukahlukene ze-inthanethi. I-MySQL iyithuluzi elinamandla neliguquguqukayo, ukuphepha nakho kuyinkinga enkulu. Isici esibalulekile sokuvikela ukusethwa kwe-MySQL kufaka phakathi ukulawula ukufinyelela abasebenzisi abanabo kusizindalwazi. Lapha, sizohlola ngokuqondile indlela yokudala umsebenzisi nge-mysql_native_password ku-MySQL, sigxile enkingeni, isixazululo, incazelo yekhodi, nemisebenzi ehlobene. MySQL futhi mysql_native_password yizindikimba ezisemqoka zale ngxoxo.

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Ixazululiwe: yeka isevisi ye-mysql ubuntu

Ukuphatha izinsiza ze-SQL kuyingxenye ebalulekile yokugcina iseva egciniwe. Omunye wemisebenzi ebalulekile kule nqubo ukwazi ukuthi ungayimisa kanjani insiza ye-SQL, ikakhulukazi endaweni ye-Ubuntu. I-MySQL, enye yezinhlelo zokuphatha i-database ethandwa kakhulu, ivame ukusebenzisa lolu hlobo lwesistimu yokusebenza ye-Linux.

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Kuxazululiwe: Ibhentshi lokusebenzela cisha imodi ephephile

I-MySQL Workbench iyithuluzi lokugcina ledathabheyisi nabaphathi bezinhlelo, abaklami be-DB, nabathuthukisi be-SQL. Ihlinzeka ngezici ezihlukahlukene zokuphatha izindawo ze-MySQL. Nokho, ukusebenza kwayo ngezinye izikhathi kungase kudinge ukucisha imodi ephephile. Imodi ephephile yendabuko ku-Workbench yakhelwe ukuvimbela ukwenziwa kwemibuzo elimazayo kungahlosile. Lokhu kuvikela kuyisici esihlakaniphe ngendlela emangalisayo futhi ewusizo, ikakhulukazi uma usebenzisa imibuzo yokususa noma yokubuyekeza enamandla okuthinta imigqa eminingi.

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Kuxazululiwe: khubaza imodi ephephile

Impela, nansi indlela esingayakha ngayo indatshana mayelana nokukhubaza imodi ephephile ku-SQL:

Abaningi bangase babuze njalo ukuthi iyiphi imodi ephephile nokuthi kungani kunesidingo sokuyikhubaza. Emhlabeni we-SQL, i-Safe Mode iyimodi yokusebenza lapho izici ezithile, ezingase zibe khona ubungozi bokuphepha kwesistimu, zikhawulelwe noma zikhutshazwe. Lesi silinganiso sokuvikela sivimbela abasebenzisi ekwenzeni ngephutha izenzo ezingase ziphazamise ukusebenza kwesistimu.

Nakuba i-Safe Mode iyisici esizuzisayo, kunezimo lapho umsebenzisi angase adinge ukuyikhubaza ukuze enze imisebenzi ethile noma imisebenzi efinyeleleka kuphela ngaphandle kwalo mkhawulo.

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Kuxazululiwe: unciphisa kanjani ithebula ngokhiye bangaphandle

Ukunqamula ithebula ngokhiye bangaphandle kungaba umsebenzi onzima, ikakhulukazi uma izithiyo zisethwa kusizindalwazi. I-SQL, njengoba inamandla njengoba injalo, inikeza ukuguquguquka nokulawula ukuphatha izimo ezinjalo ngaphandle komthungo.

Ukunqamula ithebula kusho ukususa yonke imigqa etafuleni. Nokho, uma ithebula lixhunywe kwamanye amathebula ngokhiye bangaphandle, kuba inselele kakhudlwana ngoba ubuqotho bedatha kuwo wonke amathebula budinga ukugcinwa. Kepha masingaphelelwa yinhliziyo, i-SQL isihlinzeka ngokusebenza okuqinile kwalokhu.

BEGIN TRANSACTION;

/*Disable constraints*/
EXEC sp_msforeachtable "ALTER TABLE ? NOCHECK CONSTRAINT all"

TRUNCATE TABLE table_to_truncate

/*Enable constraints*/
EXEC sp_msforeachtable "ALTER TABLE ? WITH CHECK CHECK CONSTRAINT all"

COMMIT;

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