Deleting a specific range of code in MySQL?

[Shinji]

Hello friends. There is a code structure where the middle is different but the start and end are the same. How can we automatically delete this structure in multiple posts with code? For example; ............... parts are different. However, the other parts are fixed. How do you think it can be done? ___ Edit: It may not be necessary, but if it can be done, it could be an extra piece of information that is useful.