Diskda saqlanadigan fayllar katologi

b) Satrlar bo’yicha shart kiritilganda
Malumotlar bazasi
c) Yangi satrlar to’ldirilganda
d) Ustunlar bo’yicha shart kiritilganda
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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
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SQL so’zi kengaytmasi
a) Stop quen large
b) Structured query line
c) Structured query language
d) Service query language
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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
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Foydalanuvchi va rollarga berilgan imtiyozlarni bekorlash operatori qaysi
a) GRANT
b) DROP
c) REVOKE
d) DELETE
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Jadvaldagi kortejlarni guruhlash uchun qanday operatordan foydalanamiz?
a) Having
b) DISTINCT
c) GROUP BY
d) ORGER BY
Malumotlar bazasi
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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
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Malumotlar bazasi modellari amalda nechta turga bo’linadi
a) 3
b) 5
c) 2
d) 4
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Malumotlar bazasini boshqarish tizimining foydalanuvchi ixtiyoriga beriladigan buyruqlar
to’plamini nechta guruhga bo’lish mumkin
a) 7
b) 5
c) 4
d) 6
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Malumotlar bazasi strukturasi o’zgaradi,agarda?
a) Yozuvlar joylari almashtirilsa
b) Maydon qo’shilsa/o’chirilsa
c) Yozuv qo’shilsa o’chirilsa
d) Yozuvlar taxrirlansa
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DML so’zi kengaytmasi nima?
a) Data monipulatsion language
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NATURAL JOIN operatoriga tariff bering
Malumotlar bazasi
a) Ichki tutashtirish turi
b) Ustunlar nomi bo’yicha tutashadi
c) Predikat orqali tutashtirishda,chap va o’ng jadvalar ko’rsatilgan predikat yordamida
ulanadi
d) Tabiiy tushuntirishda, chap va ong ustunlarnibir xil ustun ismlari bo’yicha
ulanadi,natijaviy jadvalga bir xil ismlar bir marta kiritiladi
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HAVING konstruksiyasi qaysi operator bilan birgalikda ishlaydi
a) INTERSECT
b) ORDER BY
c) CREATE TABLE
d) GROUP BY
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SEQUEL so’zining kengaytmasi
a) Scan enter Query laptop
b) Structured English query language
c) Service Evrope Query language
d) Structured Query language
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tfyguhi