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2021 Update: Easiest option is Justin's repo and image
Just run this from your Mac terminal and it'll drop you in a container with full permissions on the Docker VM. This also works for Docker for Windows for getting in Moby Linux VM (doesn't work for Windows Containers).
docker run -it --rm --privileged --pid=host justincormack/nsenter1
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Đây là một điều khá đơn giản, nhưng nó vẫn xảy ra thường xuyên. Khoá ngoại nên có các chỉ mục cho chúng. Nếu bạn đang sử dụng một trường trong nơi mà bạn nên (có thể) có một chỉ mục trên nó. Các chỉ mục như vậy thường nên bao gồm nhiều cột dựa trên các truy vấn bạn cần thực hiện.
2. Không tuân theo sự toàn vẹn tham chiếu
Cơ sở dữ liệu của bạn có thể thay đổi nhưng nếu cơ sở dữ liệu của bạn c tính toàn vẹn tham chiếu -- có nghĩa là tất cả các khoá ngoại được đảm bảo để trỏ đến một thực thể tồn tại -- bạn nên sử dụng nó.
Following on from a previous article entitled [Why design is Critical to Software Development][1], I would like to tackle a slightly more advanced aspect of software design called Design Patterns. As with my previous article, the idea came about during a discussion concerning the merits of software design with a work colleague. The protagonist of the discussion was of the opinion that Design Patterns are too time consuming to be of use within the field of commercial software development. My intention here is to demonstrate why I believe that to be wrong.
I will not go into any details about the mechanics or implementation of any particular Design Patterns. There are many excellent sources for these available elsewhere.
Following on from a previous article entitled [Why design is Critical to Software Development][1], I would like to tackle a slightly more advanced aspect of software design called Design Patterns. As with my previous article, the idea came about during a discussion concerning the merits of software design with a work colleague. The protagonist of the discussion was of the opinion that Design Patterns are too time consuming to be of use within the field of commercial software development. My intention here is to demonstrate why I believe that to be wrong.
I will not go into any details about the mechanics or implementation of any particular Design Patterns. There are many excellent sources for these available elsewhere.