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Expert SQL Server In-Memory OLTP by Dmitri Korotkevitch

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CHAPTER 8

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Data Storage, Logging, and Recovery

This chapter discusses how In-Memory OLTP stores the data from durable memory-optimized tables on disk. It illustrates the concept of checkpoint file pairs used by SQL Server to persist the data, provides an overview of checkpoint process in In-Memory OLTP, and discusses recovery of memory-optimized data. Finally, this chapter demonstrates how In-Memory OLTP logs the data in a transaction log and why In-Memory OLTP logging is more efficient compared to on-disk tables.

Data Storage

The data from durable memory-optimized tables is stored separately from on-disk tables. SQL Server uses a streaming mechanism ...

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