
Session 11 :Transaction trong PostgreSQL
Quiz
•
Information Technology (IT)
•
University
•
Practice Problem
•
Hard
haibt@rikkei.edu.vn rikkei
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Transaction trong CSDL được ví như gì?
Một stored procedure
Một gói hành động
Một ràng buộc (constraint)
Một hàm (function)
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Nguyên tắc "Vàng" của Transaction là gì?
Fast and Furious
All or Nothing
First Come First Served
Better Late Than Never
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Chữ 'A' trong ACID viết tắt cho tính chất gì?
Availability
Atomicity
Automation
Accuracy
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Tính chất nào đảm bảo Transaction chỉ chuyển CSDL từ trạng thái hợp lệ sang trạng thái hợp lệ khác?
Atomicity
Consistency
Isolation
Durability
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Lệnh nào dùng để bắt đầu một Transaction?
START
BEGIN
COMMIT
ROLLBACK
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Khi nào nên sử dụng lệnh COMMIT?
Khi có lỗi xảy ra
Khi muốn hủy bỏ thay đổi
Khi tất cả lệnh trong transaction chạy thành công
Khi bắt đầu transaction
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Lệnh ROLLBACK có tác dụng gì?
Lưu tất cả thay đổi vĩnh viễn
Hủy bỏ toàn bộ thay đổi trong transaction
Bắt đầu transaction mới
Tạm dừng transaction
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