How does mysql find the id discontinuous values?

Source: Internet
Author: User
My id is auto-incrementing and has a delete record. Now I want to find out the discontinuous IDs. My id is auto-incrementing and has a delete record. Now I want to find out the discontinuous IDs.

Reply content:

My id is auto-incrementing and has a delete record. Now I want to find out the discontinuous IDs.

It is recommended to add a field to indicate the status when deleting the table. The deleted delete is set to 1 and the default value is 0, so that the id will not be broken. The first method is good.

Can I perform other data operations? If you can, you can obtain the last row of the database and generate a high-level data table. Then join the table and determine isnull.

Ask specific questions and give appropriate scenarios

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