This chapter discusses memory-optimized tables in detail. It shows how memory-optimized tables store their data and how SQL Server accesses them. It covers the format of the data rows in memory-optimized tables and talks about the process of native compilation.Dmitri Korotkevitch...
The primary storage for memory-optimized tables is the main memory. Rows in the table are read from and written to memory. A second copy of the table data is maintained on disk, but only for durability purposes. SeeCreating and Managing Storage for Memory-Optimized Objectsfor more informati...
All memory-optimized tables must have at least one index, because it is the indexes that connect the rows together. On a memory-optimized table, every index is also memory-optimized. There are several ways in which an index on a memory-optimized table differs from a traditional index ...
Starting with SQL Server 2016 (13.x), there's no limit on the size of memory-optimized tables, though the tables do need to fit in memory. In SQL Server 2014 (12.x) the supported data size is 256 GB for SCHEMA_AND_DATA tables. The size of a memory-optimized table corresponds to ...
Memory-optimized tables use the optimistic approach: Pessimistic approach uses locks to block potential conflicts before they occur. Lock are taken when the statement is executed, and released when the transaction is committed. Optimistic approach detects conflicts as they occur, and performs validation...
Learn how the query optimizer uses statistics about columns in memory-optimized tables to create query plans that improve query performance for In-Memory OLTP.
Interpreted Transact-SQL access to memory-optimized tables is referred to as interop access. Starting with SQL Server 2016 (13.x), queries in interpreted Transact-SQL can scan memory-optimized tables in parallel, instead of just in serial mode. Memory-optimized table...
作者: D Korotkevitch 摘要: This chapter discusses memory-optimized tables in detail. It shows how memory-optimized tables store their data and how SQL Server accesses them. It covers the format of the data rows in memory-optimi DOI: 10.1007/978-1-4842-1136-6_3 年份: 2015 收藏...
Memory-optimized nonclustered indexes are a new index type for memory-optimized tables inCTP2. Nonclustered indexes support retrieving ranges of values, and also support retrieving the table rows in the order that was specified when the index was created. They can ...
A computer with enough memory to hold the data in memory-optimized tables. Memory-optimized data must not use more than 80% of the maximum server memory. 也就是不要超过整个INSTANCE内存的80%,但是数据库的增长有时候是无法预料的啊。下面开始我的测试: ...