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Muchinyorwa chino, tichaongorora nzira dzakanakisisa dzekushandura MyISAM kuita injini dzekuchengetedza dzeInnoDB muMySQL databases .
Tinokutungamirira nhanho-ne-nhanho kuburikidza neshanduko uye tinokupa mazano anobatsira uye mazano ekuona kuti yaitwa nemazvo uye zvisina njodzi.
Kunyangwe iwe uri maneja wedhatabhesi kana mugadziri, gwara iri richakubatsira kuti unzwisise mutsauko uripo pakati peMyISAM neInnoDB, uye nei kutendeukira kuInnoDB kwakakosha kukwenenzvera kuita nekuvandudza kuvimbika kwedata.
Nekutevera matanho edu akadzama, uchakwanisa kushandura dhatabhesi yako yeMySQL kuita injini yekuchengetera yeInnoDB zviri nyore, nokudaro uchivandudza mashandiro uye kuve nechokwadi chekuchengetedzwa kwedata uye kuvimbika.
MuMySQL dhatabhesi system, MyISAM neInnoDB maviri akajairika ekuchengetedza injini. MyISAM inokurumidza uye inokodzera mamiriro ane akawanda ekuverenga mashandiro.
InnoDB inotsigira kutengeserana, makiyi ekunze, uye mutsara-level kukiya, uye yakanyanya kukodzera kune maapplication anoda kutendeseka kwedata uye concurrency control. Saka, chii chatinofanira kuita kana tichida kushandura matafura eMyISAM kuInnoDB?
Sei uchishandura MyISAM kuita InnoDB?
Kutanga, ngatitaure pamusoro pekuti sei tiri kuita shanduko iyi.
Kunyangwe MyISAM iine kuita kwakanaka, ine zvikanganiso mukuchengetedza data uye panguva imwe chete kugadzirisa.
InnoDB inopa tsigiro yekutengeserana, iyo inogona kuve nechokwadi chekuenderana kwedata uye kubata yakakwirira concurrency mamiriro.
1. Kuvimbika kweData: InnoDB inotsigira kutengeserana, izvo zvinoita kuti mabasa ekudzokorora data aenderane uye zvinovimbisa kuti data racho rinowirirana.
2. Kudzora mari yemuchina: InnoDB inoshandisa kukiya kwemutsara, uko kwakakodzera mashandisirwo emari yemuchina we ...
3. Rutsigiro rweMakiyi Ekunze: InnoDB inotsigira makiyi ekunze, izvo zvinogona kuve nechokwadi chekuti data rakavimbika.
Nzira ye batch shandura MyISAM kuita InnoDB
Tinogona kushandisa chirevo chimwe cheSQL kugadzira zvirevo zveshanduko yematafura ese tobva tazviita zvese kamwechete.
Izvi zvinonzwika zvakaoma, asi zviri nyore chaizvo. Matanho mashoma.
Danho 1: Sarudza dhatabhesi
Kutanga, ita shuwa kuti wasarudza dhatabhesi raunoda kushanda pariri. Mirairo inotevera inogona kushandiswa:
mysql
USE 你要操作的数据库名;
Danho rechipiri: Gadzira zvirevo zvekutendeuka
Tevere, isu tinofanirwa kugadzira zvirevo zveSQL zvinoshandura ese matafura eMyISAM kuInnoDB matafura.
Izvi zvinogona kuitwa nekubvunza information_schema.tables tafura yekuwana.
Mhanya inotevera SQL chirevo:
SELECT CONCAT('ALTER TABLE ',table_name,' ENGINE=InnoDB;')
FROM information_schema.tables
WHERE table_schema="你要操作的数据库名" AND ENGINE="MyISAM";Ichi chirevo chinoburitsa seti yeALTER TABLE zvirevo zvinoshandura injini yekuchengetera yega yega tafura yeMyISAM kuInnoDB.
Danho rechitatu: Ita chirevo chekushandura
Kopa mhedzisiro yakagadzirwa padanho rapfuura, uye AI inogona kutibatsira kusefa miganhu zviri nyore.
Isa zvinotevera muChatGPT :
请帮我过滤以下边框：
+--------------------------------------------------------------+
| ALTER TABLE table1 ENGINE=InnoDB; |
| ALTER TABLE table2 ENGINE=InnoDB; |
| ALTER TABLE table3 ENGINE=InnoDB; |
+--------------------------------------------------------------+
Zvino, kana ichimhanya muMySQL, MySQL ichaita izvi ALTER TABLE zvirevo mukuteedzana kushandura ese matafura eMyISAM kuInnoDB matafura.
Muenzaniso
Fungidzira kuti dhatabhesi raunoda kushandisa rine zita example_db, ita zvinotevera:
- Sarudza database:
USE example_db;
- Gadzira zvirevo zvekutendeuka:
SELECT CONCAT('ALTER TABLE ',table_name,' ENGINE=InnoDB;')
FROM information_schema.tables
WHERE table_schema="example_db" AND ENGINE="MyISAM";- Kopa chirevo chakagadzirwa uye chiite muMySQL:
ALTER TABLE table1 ENGINE=InnoDB;
ALTER TABLE table2 ENGINE=InnoDB;
Kuchenjerera
Usati waita iyi batch yekushandura oparesheni, pane mashoma mapoinzi ekucherechedza:
1. Kuchengetedza Data: Usati waita shanduko yebatch, iva nechokwadi chekuti wachengeta data rese kuti data risarasikirwe.
2. Nzvimbo yekuedza: Zvakanaka kutanga waedza munzvimbo yekuedza kuti uve nechokwadi chekuti maitiro ekushandura haazokanganisi mashandiro akajairika ekushandisa.
3. Mvumo dzeDatabase: Iva nechokwadi chekuti une mvumo yakakwana yedatabase yekuita basa reALTER TABLE.
mukupedzisa
Nematanho ari pamusoro apa, isu tinogona nyore batch kushandura ese matafura eMyISAM muMySQL dhatabhesi kuenda kumatafura eInnoDB. Kuita izvi hakungogone chete kuvandudza hunyanzvi hwekugadzirisa dhatabhesi, asi zvakare kuwedzera kuchengetedzeka uye kutendeseka kweiyo data.
Ndinovimba chinyorwa ichi chinogona kukubatsira iwe kunzwisisa zviri nani uye kushandisa iyo MySQL dhatabhesi. Kana uine chero mibvunzo kana mazano, ndapota siya meseji munzvimbo yekutaura.
Ndizvo zvese nezveMyISAM batch shanduko kuInnoDB. Iye zvino unogona kuzviedza!
🔧💡Unoda kuziva maitiro ekushandura tafura yeInnoDB kuita injini yeMyISAM uchishandisa phpMyAdmin ? Chinyorwa chino chinopa matanho akadzama uye gwara rekukubatsira kupedzisa kushandura zviri nyore!
👇Inokurudzirwa kuti urambe uchiverenga👇
Dzvanya chinongedzo kuti udzidze humwe hunyanzvi hwekushandura dhatabhesi uye kukwidziridza manejimendi ako e database! 📚💻
Tinovimba kuti chinyorwa chinoti "Maitiro ekushandura MyISAM kuita InnoDB Storage Engine muMySQL Databases?" chakagoverwa pablog raChen Weiliang ( https://www.chenweiliang.com/ ) chichakubatsira.
Sunungukai kugovera link yechinyorwa chino: https://www.chenweiliang.com/cwl-31790.html