Phỏng vấn 20'

anonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·tech

anonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·tech

anonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·tech

anonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·tech

anonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·tech

anonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·tech

anonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·tech

anonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·tech

anonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·tech

anonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·techanonymous · 23:50 3/6/26 · ORA·tech

Cơ chế MVCC trong PostgreSQL hoạt động như thế nào? · ORA·tech

Nâng cao Pro#postgresql

Cơ chế MVCC trong PostgreSQL hoạt động như thế nào?

15 tháng 2, 2026

Tóm tắt nhanh

MVCC trong PostgreSQL giúp đọc-ghi song song không chặn nhau bằng cách lưu trữ nhiều phiên bản vật lý (tuples) của cùng một dòng dữ liệu, quản lý qua các trường ẩn `xmin`/`xmax`. Cơ chế này tránh được tình trạng khóa bảng nhưng tạo ra "dead tuples" (rác dữ liệu), đòi hỏi tiến trình `VACUUM` dọn dẹp để tránh phình (bloat) database.

guest · ORA·techguest · ORA·techguest · ORA·techguest · ORA·techguest · ORA·tech

guest · ORA·techguest · ORA·techguest · ORA·techguest · ORA·techguest · ORA·tech

guest · ORA·techguest · ORA·techguest · ORA·techguest · ORA·techguest · ORA·tech

guest · ORA·techguest · ORA·techguest · ORA·techguest · ORA·techguest · ORA·tech

guest · ORA·techguest · ORA·techguest · ORA·techguest · ORA·techguest · ORA·tech

guest · ORA·techguest · ORA·techguest · ORA·techguest · ORA·techguest · ORA·tech

Nội dung dành cho Pro

Mở khoá toàn bộ câu hỏi Trung bình & Nâng cao + đáp án chi tiết.

Nâng cấp Pro

Câu hỏi liên quan

Trung bình Pro

Trung bình Pro

Trung bình Pro

Quay lại chủ đề