7-mavzu. JOIN operatorlari

7-mavzu. JOIN operatorlari

University

15 Qs

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7-mavzu. JOIN operatorlari

7-mavzu. JOIN operatorlari

Assessment

Quiz

Computers

University

Practice Problem

Easy

Created by

Turdali Jumayev

Used 1+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

JOIN operatori nima uchun ishlatiladi?

Bir nechta jadvallarni bog‘lab ma’lumot olish uchun

Yangi jadval yaratish uchun

Ustun nomini o‘zgartirish uchun

Ma’lumotni o‘chirish uchun

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

INNER JOIN nima qiladi?

Ikkala jadvalda mos keladigan yozuvlarni chiqaradi

Faqat chap jadvaldagi yozuvlarni chiqaradi

Faqat o‘ng jadvalni chiqaradi

Hech qanday yozuv chiqarmaydi

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

LEFT JOIN nima qiladi?

Chap jadvaldagi barcha yozuvlarni, va o‘ng jadvaldagi moslarini chiqaradi

Faqat mos yozuvlarni chiqaradi

Faqat o‘ng jadvalni chiqaradi

Hech narsa chiqarmaydi

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

RIGHT JOIN nima qiladi?

O‘ng jadvaldagi barcha yozuvlarni va chap jadvaldagi moslarini chiqaradi

Faqat chap jadvalni chiqaradi

Faqat mos yozuvlarni chiqaradi

Yangi jadval yaratadi

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

FULL JOIN nima qiladi?

Har ikkala jadvaldagi barcha yozuvlarni chiqaradi

Faqat chap jadvalni chiqaradi

Faqat o‘ng jadvalni chiqaradi

Faqat mos yozuvlarni chiqaradi

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

INNER JOIN natijasida mos yozuvlar bo‘lmasa nima chiqadi?

Bo‘sh natija (NULLsizlik) chiqadi

Chap jadval chiqadi

O‘ng jadval chiqadi

Barcha yozuvlar chiqadi

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

OIN bajarishda ON sharti nimani bildiradi?

Qaysi ustunlar orqali bog‘lanishni ko‘rsatadi

Qaysi ustunlarni chiqarishni bildiradi

Filtrlash shartini bildiradi

Tartiblash shartini bildiradi

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