sql so'rovlari va funksiyalari
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mavzu:having standart so’zi yordamida so’rovlar yaratish, union, intersect, va minus standart sozidan foydalanish, standart funksiyalarcan so’rovlar yaratish, agregat funksiyalardan foydalanish. mavzu:having standart so’zi yordamida so’rovlar yaratish, union, intersect, va minus standart sozidan foydalanish, standart funksiyalarcan so’rovlar yaratish, agregat funksiyalardan foydalanish. . reja: 1. having stardart so’zidan so’rovlar yaratish 2. union, intersect, va minus standart so’zidan foydalanish. 3. standart funksiyalarcan so’rovlar yaratish 4. agregat funksiyalardan foydalanish . having parametri qator guruhlari uchun tanlov shartini belgilashga imkon beradi. u where parametriga o'xshaydi, lekin group by parametridan keyin aniqlanadi va birlashtirilgan qatorlarga qo'llaniladi. having ...
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