Sequential scheduled tasks

I'd try to execute many jobs sequentially with the data from Sqlite database which have been already made. Also, each job should be executed several seconds later after the earlier job has been done. The delay second information is contained in each row of Sqlite DB. More 60 rows of the Sqlite database are expected.

I considered Timer, Handler, Alarmmanager, but had no ideal for making cord of many scheduled jobs.

I would be appreciated for anyone to provide any hint regarding this. Thanks