• 168============================================================ SQL so’zi kengaytmasi
  • 172============================================================= Datalogik modelga ta’rif bering a) Umumlashgan va predmet sohani tasvirlovchi ma’lumotlar to’plami
  • 173=============================================================
  • #167============================================================= Makroslar nima uchun mo’ljallangan?




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    #167=============================================================
    Makroslar nima uchun mo’ljallangan?
    a) Malumotlarni kiriish uchun
    b) Ma’lumotlar bazasini tanlash va qayta ishlash un
    c) Buyruqlar guruhi avtomatik bajarilishi uchun
    d) Malumotlar bazasini saqlash uchun
    #168============================================================
    SQL so’zi kengaytmasi
    a) Stop quen large
    b) Structured query line
    c) Structured query language
    d) Service query language
    #169===========================================================
    Quyidagi tasdiqlardan qaysi biri to’g’ri?
    a) Malumotlar bazasi maydon tarkibida bir nechta yozuvlar bor
    b) Malumotlar bazasida har bir maydon o’z uzunligiga ega
    c) Malumotlar bazasi qatiiy strukturaga ega
    d) Malumotlar bazasida yozuv tarkibida yozuv tarkibida bir nechta maydonlar bor
    #170==============================================================
    Foydalanuvchi va rollarga berilgan imtiyozlarni bekorlash operatori qaysi
    a) GRANT
    b) DROP
    c) REVOKE
    d) DELETE
    #171=============================================================
    Jadvaldagi kortejlarni guruhlash uchun qanday operatordan foydalanamiz?
    a) Having
    b) DISTINCT
    c) GROUP BY
    d) ORGER BY
    Malumotlar bazasi
    #172=============================================================
    Datalogik modelga ta’rif bering
    a) Umumlashgan va predmet sohani tasvirlovchi ma’lumotlar to’plami
    b) Qattiq diskdagi malumotlarning joylashuvi
    c) Kompyuter xotirasuda saqlanadigan malumotkar tasviri
    d) Malumotlarning aniq bir MBBT tilida tasvirlanishi
    #173=============================================================
    Malumotlar bazasi modellari amalda nechta turga bo’linadi
    a) 3
    b) 5
    c) 2
    d) 4
    #175===============================================================
    Malumotlar bazasini boshqarish tizimining foydalanuvchi ixtiyoriga beriladigan buyruqlar
    to’plamini nechta guruhga bo’lish mumkin
    a) 7
    b) 5

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    #167============================================================= Makroslar nima uchun mo’ljallangan?

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