Duplicate records in SQL delete table only one left

Source: Internet
Author: User

Insert duplicates when inserting data accidentally today

There are no primary key foreign keys in this table, you may insert or delete them arbitrarily.

There's a lot of complicated statements on the web that don't solve the problem.

Finally, use delete top (1) to solve the problem

Delete Top (1from where='xiaomin'


can also be used

Update  Top (1) from the person where name = ' xxxx ' delete from the person where name = ' xxxx '

It's not that complicated.

Duplicate records in SQL delete table only one left

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.