Snapshot limitation: What contributes to this limitation?


we can create multiple snapshots database although increases i/o. if want restore snapshot, have delete of remaining snapshots except 1 restoring from. limitation coming , whats reasoning behind this? there technical limitation or way putting brakes on functionality not used/abused instead of traditional backups?

 

i coulnd't find documentation on this, if knew please educate me or provide me pointers. appreciate help.

 

thanks,

sankar

the snapshots not contain data of main db. 

only when change in main db, original image of changed page copied existing snapshots.

so when your read snapshot, , page containing data involved has not been changed since snapshot bulit, are fetching the page form main db in fact.

all snapshots base on main db, so if wanna restore it,  all unnecessary dependency should removed first.



SQL Server  >  SQL Server Database Engine



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