database - Savepoint in database

Question

I am researching on transaction savepoint in databases but what I am not getting is what exactly is the information which is saved during savepoint. It has to be little bulky since it will be used to rollback the transaction to the savepoint and restart from there. please provide some link or info to get detailed understanding. Thanks!

Answer 1

您需要的是定期备份...

确保你可以恢复你需要的东西——特定的数据库、表等。