mysql - Purpose of Datestamp Column in Database Table -


i'm working on building webapp , received partial database schema. of tables have datestamp columns keep track of when record last updated.

my question twofold: is/are purpose(s) or benefit(s) of tracking when record updated, , when should done?

thanks

you want "updated_at" column if user wants sort or filter when row last updated.

look @ google drive's main listing window. there column "last modified" can sort on, @ documents modified. need database column last modified date able sort value.

another example api api users want download new information, filter (using clause) records had changed since last download.


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