I have app in grails(uses GORM - grails ORM) and DB is MySql. I have table called 'attachment' in database which stores the files attached in web app as blob type. Each file size varies from 30 kb - 200 kb. Now I want to provide a provision for users to delete the attachments. The entries deleted will not be re-used and i don't have unique constraint on any fields.
total size of table attachment is 35 MB. Which keeps growing.
And there is a relationship between the table 'attachment' and table 'training'. which says training has got many attachments.
1) Is it good idea to use logical delete (deleted = true) against the physical delete ?.
2) Does logical delete affects the performance of DB (keeping the rows in the table without deleting them) ?.
total size of table attachment is 35 MB. Which keeps growing.
And there is a relationship between the table 'attachment' and table 'training'. which says training has got many attachments.
1) Is it good idea to use logical delete (deleted = true) against the physical delete ?.
2) Does logical delete affects the performance of DB (keeping the rows in the table without deleting them) ?.
