SQL tilida COUNT(*) agregat funksiyasining vazifasi nimadan iborat?

So‘rov natijalari jadvalidagi satrlar sonini hisoblaydi.

Ustundagi bo'sh bo'lmagan qiymatlar sonini hisoblaydi.

SQL tilida COUNT(ustun) agregat funksiyasining vazifasi nimadan iborat?

Ustundagi bo'sh bo'lmagan qiymatlar sonini hisoblaydi.

So‘rov natijalari jadvalidagi satrlar sonini hisoblaydi.

BETWEEN operatori vazifasi - bu

diapazonga tegishliligini tekshirishdir

OFFSET buyrug’i – ... vazifasini bajaradi.

dastlabki bir nechtasi tashlab yuborib, keyingi bir nechtasini olish

qaytarilmaydigan qiymatlar hosil qilish

qaytariluvchi qiymatlar hosil qilish

dastlabki bir nechta qatordagi ma’lumotni olish

2020-yilda ishlab chiqarilgan avtomobillarning umumiy narxini hisoblang.

SELECT SUM(price) FROM car WHERE year = 2020;

SELECT SUM(price) FROM car WHERE year < 2020;

SELECT AVG(price) FROM car WHERE year = 2020;

Har bir mamlakatda nechta avtomobil borligini, lekin faqat 5 tadan ortiq avtomobilga ega mamlakatlarni ko‘rsating?

SELECT country, COUNT(*) FROM car GROUP BY country HAVING COUNT(*) > 5;

SELECT country, COUNT(*) FROM car;

SELECT COUNT(*) FROM car GROUP BY country;

SELECT country, COUNT(*) FROM car GROUP BY country HAVING COUNT(*) = 5;

2021-yilda ishlab chiqarilgan avtomobillar orasida eng qimmat narxni toping?

SELECT MAX(price) FROM car WHERE year = 2021;

SELECT MAX(price) FROM car WHERE year > 2021;

SELECT MIN(price) FROM car WHERE year < 2021;

SELECT MIN(price) FROM car WHERE year = 2021;

Eng qimmat va eng arzon avtomobillar narxlarini yonma-yon chiqaring?

SELECT MAX(price) AS eng_qimmat, MIN(price) AS eng_arzon FROM car;

SELECT MIN(price) AS eng_qimmat, MAX(price) AS eng_arzon FROM car;

SELECT MAX(price) AS eng_qimmat FROM car;

SELECT MIN(price) AS eng_arzon FROM car;

MB-6

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20 Qs

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Turdali Jumayev

Used 14+ times

FREE Resource

20 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

SQL tilida SUM() agregat funksiyasining vazifasi nimadan iborat?

Ustundagi barcha qiymatlar summasini hisoblaydi.

Ustundagi barcha qiymatlar eng kichigini aniqlaydi.

Ustundagi barcha qiymatlar o‘rtasi qiymatini xisoblaydi.

Ustundagi barcha qiymatlar eng kattasini aniqlaydi.

FILL IN THE BLANK QUESTION

1 min • 1 pt

SELECT SUM(5.0+4);

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

SQL tilida AVG() agregat funksiyasining vazifasi nimadan iborat?

Ustundagi barcha qiymatlar summasini hisoblaydi.

Ustundagi barcha qiymatlar eng kichigini aniqlaydi.

Ustundagi barcha qiymatlar o‘rtacha qiymatini xisoblaydi.

Ustundagi barcha qiymatlar eng kattasini aniqlaydi.

FILL IN THE BLANK QUESTION

1 min • 1 pt

SELECT ROUND(AVG(7+5), 2);

FILL IN THE BLANK QUESTION

1 min • 1 pt

SELECT ROUND(SUM(5.0+4));

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

SQL tilida MIN() agregat funksiyasining vazifasi nimadan iborat?

Ustundagi xamma qiymatlar summasini hisoblaydi.

Ustundagi barcha qiymatlar orasidan eng kichigini aniqlaydi.

Ustundagi xamma qiymatlar o‘rtacha qiymatini xisoblaydi.

Ustundagi xamma qiymatlar eng kattasini aniqlaydi.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

SQL tilida MAX() agregat funksiyasining vazifasi nimadan iborat?

Ustundagi xamma qiymatlar summasini hisoblaydi.

Ustundagi barcha qiymatlar orasidan eng kattasini aniqlaydi.

Ustundagi xamma qiymatlar o‘rtacha qiymatini xisoblaydi.

Ustundagi xamma qiymatlar eng kichigini aniqlaydi.

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SQL tilida SUM() agregat funksiyasining vazifasi nimadan iborat?

SELECT SUM(5.0+4);

SQL tilida AVG() agregat funksiyasining vazifasi nimadan iborat?

SELECT ROUND(AVG(7+5), 2);

SELECT ROUND(SUM(5.0+4));

SQL tilida MIN() agregat funksiyasining vazifasi nimadan iborat?

SQL tilida MAX() agregat funksiyasining vazifasi nimadan iborat?

SQL tilida COUNT(*) agregat funksiyasining vazifasi nimadan iborat?

SQL tilida COUNT(ustun) agregat funksiyasining vazifasi nimadan iborat?

Ushbu SQL so'rovning natijasi nima chiqadi? SELECT TRUNC(3.5 + 2.6);

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