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Khi nào nên dùng Document Embedding vs Referencing trong MongoDB? · ORA·tech

Trung bình Pro#database

Khi nào nên dùng Document Embedding vs Referencing trong MongoDB?

15 tháng 2, 2026

Tóm tắt nhanh

Sự khác biệt cốt lõi nằm ở tần suất truy cập, mối quan hệ giữa các thực thể và giới hạn kích thước 16MB của MongoDB. Dùng **Embedding** để tối ưu hóa tốc độ đọc (1 single query) cho quan hệ 1-1 hoặc 1-Nhiều giới hạn; dùng **Referencing** cho quan hệ N-N hoặc khi dữ liệu con tăng trưởng vô hạn để tránh phân mảnh và tràn bộ nhớ.

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