Learn SQL - Database & MySQL

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Iqukethe izikhangisoUkuthenga ngaphakathi nohlelo

Mayelana nalolu hlelo lokusebenza

Funda i-SQL ngokubhala imibuzo yangempela kusukela esifundweni sakho sokuqala. Izifundo ezisebenzisanayo nezinkulu zikuthatha kusukela ku-SELECT kuya ku-JOINs ethuthukisiwe — nomeluleki we-AI ochaza yonke imiphumela.

I-SQL ulimi lwedatha: yonke inkampani, yonke ibhodi yomsebenzi, yonke indima yokuhlaziya iyayicela. Lolu hlelo lokusebenza luyenza inamathele ngokukwenza uthayiphe, ugijime futhi ulungise imibuzo yangempela esikhundleni sokubuka omunye umuntu ekwenza.

Imizuzu emihlanu ngosuku yanele ukusuka ku-"yini i-database?" ukuya ekubuzeni njengochwepheshe.

LOKHO OZOKWAZI UKUKWENZA
• Funda futhi ubhale imibuzo yangempela ye-SQL — KHETHA, LAPHO, ODA NGOKWE, IQEMBU NGOKWEQEMBU• Hlanganisa amatafula no-INNER, LEFT kanye no-multi-table JOINs
• Fingqa idatha ngemisebenzi ehlanganisiwe, i-HAVING kanye ne-subqueries
• Dala, buyekeza futhi uphathe amatafula kanye nedathabheyisi ngokuzethemba
• Qonda ukuthi i-MySQL, i-PostgreSQL kanye ne-SQLite zihluke kanjani ekusebenzeni
• Phendula imibuzo ye-SQL ebonakala kudatha kanye nezingxoxo zonjiniyela

INDLELA YAKHO YOKUFUNDA
1. Izisekelo — amatafula, imigqa kanye nezitatimende zakho zokuqala ze-SELECT
2. Ukubuza okuyinhloko — ukuhlunga, ukuhlunga, ukuqoqa kanye nemisebenzi
3. Amatafula amaningi — JOINs, okhiye, ubudlelwano kanye ne-subqueries
4. I-SQL Esebenzayo — amasethi edatha angempela, amacala onqenqema kanye nomkhuba wesitayela sengxoxo

KONKE OKUDINGAYO KU-APP EYODWA
• Izifundo ezingaphezu kuka-45 kanye nezifundo ezisebenzisanayo ezingaphezu kuka-180+, abaqalayo kuya kwabaphambili
• Zijwayeze emibuzweni yangempela ngempendulo esheshayo — khona kanye ocingweni lwakho
• Umeluleki we-AI, amahora angu-24 ngosuku, izinsuku eziyi-7 ngesonto — buza ukuthi kungani umbuzo wehluleka bese uthola Impendulo ecacile neyomuntu siqu
• Izifundo ezincane ezenzelwe ukuqeda ngesikhathi sekhefu lekhofi
• Imibuzo nezinselele eziguqula i-syntax zibe umuzwa wemvelo
• Thola izitifiketi njengoba uqeda izifundo
• Funda ngezilimi ezingaphezu kuka-20

IZIHLOKO EZIGUQULIWE
KHETHA · LAPHO · ODA NGOKWE · IQEMBU NGOKWE · Imisebenzi Ehlanganisiwe · JOYINA · Imibuzo Engaphansi · Okhiye Nezithiyo · Imisebenzi ye-CRUD · Ukuklama Ithebula · I-MySQL · I-PostgreSQL · I-SQLite

KUNGANI KUSEBENZA
Akekho ofunda i-SQL ngokufunda ngayo. Isifundo ngasinye lapha siyasebenzisana: ubikezela umphumela, ubhala umbuzo, ubone idatha ibuya bese ulungisa amaphutha akho khona manjalo. Leyo mpendulo yilokho okuguqula abaqalayo babe ngabantu abacabanga ngemibuzo - ngokuvamile ngokushesha kunalokho ababekulindele.

KUNGOKUBANI
• Abahlaziyi, abamakethi kanye nabaphathi abafuna ukudonsa idatha yabo
• Abathuthukisi be-Backend, bewebhu kanye nabeselula bengeza izizindalwazi kumakhono abo
• Abafundi kanye nabashintshi bemisebenzi abaya ezindimeni zedatha
• Noma ubani onengxoxo ye-SQL ekhalendeni

QALA MAHHALA NAMUHLA
Landa Funda i-SQL: Umbuzo Nokuzijwayeza bese usebenzisa umbuzo wakho wokuqala wangempela emizuzwini emihlanu ezayo. Isifundo sakho sokuqala simahhala — amakhono akho edatha aqala manje.