Common disposition of a table crud that does not delete records

Source: Internet
Author: User

Why not delete records, because these records are only temporarily not used, the future is still possible to use, for example, statistics, and some of the primary key foreign key dependencies on the removal of the situation is not good really deleted, easy to bulk delete. If it is deleted, it will not be easy to recover back.

As a general practice, add a available field, int type, without setting to 0, with set to 1. The default value is 1.

When querying, use the SELECT * from table where available=1.

When deleted, use the Update table set available=0 where id=xx

Modify is not related to the available field

The increment is independent of the available field, allowing it to automatically take the default value.

This disposition does not increase the amount of work, but in the recovery and restore the peace of mind some.

Common disposition of a table crud that does not delete records

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.