How can we re-use the deleted id from any MySQL-DB table?
If I want to rollback the deleted ID , can we do it anyhow?
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How can we re-use the deleted id from any MySQL-DB table?
If I want to rollback the deleted ID , can we do it anyhow?
It may be possible by finding the lowest unused ID and forcing it, but it’s terribly bad practice, mainly because of referential integrity: It could be, for example, that relationships from other tables point to a deleted record, which would not be recognizable as “deleted” any more if IDs were reused.
Bottom line: Don’t do it. It’s a really bad idea.
Related reading: Using auto_increment in the mySQL manual
Re your update: Even if you have a legitimate reason to do this, I don’t think there is an automatic way to re-use values in an
auto_incrementfield. If at all, you would have to find the lowest unused value (maybe using a stored procedure or an external script) and force that as the ID (if that’s even possible.).