What Is Level 0, Level 1 Backup?

1.	What Is Level 0, Level 1 Backup?
Answer» A level 0 incremental backup, which is the BASE for subsequent incremental backups, copies all blocks containing data, backing the data file up into a backup set just as a FULL backup would. A level 1 incremental backup can be either of the following types: A differential backup, which backs up all blocks CHANGED after the most recent incremental backup at level 1 or 0 A cumulative backup, which backs up all blocks changed after the most recent incremental backup at level 0

Answer»

A level 0 incremental backup, which is the BASE for subsequent incremental backups, copies all blocks containing data, backing the data file up into a backup set just as a FULL backup would. A level 1 incremental backup can be either of the following types:
A differential backup, which backs up all blocks CHANGED after the most recent incremental backup at level 1 or 0
A cumulative backup, which backs up all blocks changed after the most recent incremental backup at level 0

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