
Câu hỏi về T-SQL Bài 6
Authored by Anh Ngáo
Computers
12th Grade
Used 2+ times

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29 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đâu là những câu lệnh được dùng trong T-SQL?
Mikdir, mv, rm
Print, getch, return
Create, Alter, Drop
Main, getch, int
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu lệnh nào trả về vị trí của chữ "n trong chuỗi Than
SELECT LEN(‘Than’)
SELECT SUB (‘Than’, 3, 1)
SELECT LEFT (‘Than’, 2)
SELECT CHARINDEX(‘n’, ‘Than’)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của câu lệnh SELECT ABS(‘-15’) là gì?
15
1
-15
0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của câu lệnh SELECT ROUND(‘5.7,0’) là gì?
0
5.7
6
5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của câu lệnh SELECT LOWER(‘HELLO’) là gì?
HeLLO
hELLO
hello
HELLO
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu lệnh nào tính toán số ngày giữa ngày 2024-07-30 và 2024-07-27?
SELECT DATEPART(day, ‘2024-07-30’) DATEPART (day, ‘2024-07-27’)
SELECT DATEDIFF (day, ‘2024-07-27’, ‘2024-07-30’)
SELECT DATEADD( day, -3 ‘2024-07-30’)
SELECT DATESUB(day, ‘2024-07-30’, ‘2024-07-27’)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu lệnh nào trích xuất 3 ký tự đầu tiên từ chuỗi "Vietnam"?
SELECT SUBSTRING(‘Vietnam’, 1, 3)
SELECT LEN(‘Vietnam’)
SELECT CHARINDEX(‘nam’, ‘Vietnam’)
SELECT LEFT(‘Vietnam’, 3)
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