Flexible Transaction Management

• Guaranteed atomicity and durability

  • row-level / table-level / database-level locking, logging with log buffer pushed to disk on commit (group commits), checkpoints

• Guaranteed atomicity, delayed durability

  • log buffer overflows to disk

• Guaranteed atomicity, application-managed durability

  • diskless logging, checkpoints

• Application-managed atomicity and durability

  • no logging

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