Contents
When to delete data from a live table?
However, if the deleted data is more than a certain time period old (a year for example) you might decide to really delete it from the live tables but keep it in either an archive table or even just on back up should the user ever want it back. In this way you can keep the amount of data (live and recently deleted) to a minimum.
When to delete data from SQL Server archive?
If your users are unsure about the archive process, play it safe and just try to move the data to another set of tables first and then perhaps to another system. If you are overly cautious and your users just want to delete the data, consider moving the data to another database for 1 to 3 months before permanently deleting the data.
What to do with deleted data in SQL?
If you’ve deleted data, you’ll simply search for rows that are present in the old table, and we don’t have them in the new table, using LEFT JOIN. The total number should match what we’ve expected based on the input data and select a statement with the same conditions (if we’ve run it before). SELECT cb.*
What’s the best way to archive data in a database?
You can archive data using a standard backup, moving it to another table in the database, exporting to a flat file, or moving it to another database altogether. The end goal is a cleaner production environment that still allows access to the archived data if it is needed.
Is it OK to delete data from a database?
Yes, you should delete data from your database, but it’s often not simple to tell what and when. “There’s no way to cleanly determine what data is actually in use” – I would disagree. An “IsDeleted” bit field on each table is a pretty clean way to identify a record as no longer relevant.
When to delete data from the SCOM database?
We do not delete these immediately, because that is an expensive operation and best reserved for when grooming runs at night. Also, when you are troubleshooting an agent, you might not wish to delete all the data when you delete an agent from the management group.
Can you set isdeleted = 1 in the basemanagedentity table?
You will find lots of blogs talking about setting “IsDeleted = 1” in the BaseManagedEntity table, or even other tables. This is WRONG .