How to Implement Data Incremental Loading

[bodyea]

There are two databases: one for production and the other for backup. Now, I need to perform incremental backup for a table. One of the tables has a field id, which is an integer and the primary key. When performing incremental data synchronization, I need to first query the maximum id value from the backup table, and then use this maximum id as a condition to query data from the production database. How can this be implemented? Thank you!