Ukuqonda Umsebenzi We-Lag ku-SQL: Umhlahlandlela Ophelele
Umsebenzi we-Lag ku-SQL ikuvumela ukuthi ufinyelele idatha kusuka kumugqa wangaphambilini. Funda ukuthi ungayisebenzisa kanjani ngempumelelo ekubuzeni okuthuthukile nokuhlaziya ku-SQL.
I-SQL Intersect: Umhlahlandlela Ophelele Wemisebenzi Ye-Intersection
Zitholele amandla e-SQL Intersect futhi ufunde indlela yokwenza imisebenzi ye-intersection kumathebula amaningi ukuze uthole amarekhodi ahlukile. Ingcweti yobuciko bokuhlaziya idatha ngomhlahlandlela wethu wochwepheshe.
I-Pivoting SQL: Umhlahlandlela Ophelele
Funda indlela yokuzungeza idatha ye-SQL ngempumelelo. Lo mhlahlandlela uhlanganisa amasu okuguqula imigqa ibe amakholomu, ukuthuthukisa ukuhlaziya nokwethulwa kwedatha.
Isibonelo Sezinga le-Sql: Funda Indlela Yokusebenzisa Imisebenzi Yezinga le-SQL
Zitholele amandla emisebenzi yezinga le-SQL ngesibonelo sethu sesinyathelo nesinyathelo. Funda indlela yokusebenzisa izinga le-SQL, izinga eliminyene, inombolo yomugqa, nokuningi ukuze uhlaziye futhi uhlele idatha.
