Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Schema and index changes on memory-optimized tables can be performed by using the ALTER TABLE statement. In SQL Server 2016 and Azure SQL Database ALTER TABLE operations on memory-optimized tables are OFFLINE, meaning that the...
-- 启用数据库的内存优化功能 ALTER DATABASE YourDatabaseName SET MEMORY_OPTIMIZED_ELEVATE_TO_SNAPSHOT = ON; -- 创建文件组 ALTER DATABASE YourDatabaseName ADD FILEGROUP YourFileGroupName CONTAINS MEMORY_OPTIMIZED_DATA; -- 创建内存优化表 CREATE TABLE YourMemoryOptimizedTable ( ID INT PRIMARY KEY ...
SQL Server 2014 (12.x) and SQL Server 2016 (13.x) have a limit of 8 indexes per memory-optimized table or table type. Starting with SQL Server 2017 (14.x) and in Azure SQL Database, there is no longer a limit on the number of indexes specific to memory-optimized tables and...
官网:https://docs.microsoft.com/zh-cn/sql/relational-databases/in-memory-oltp/survey-of-initial-areas-in-in-memory-oltp?view=sql-server-ver15 【1.0】使用大概步骤与限制 步骤: (1)创建数据库和MEMORY_OPTIMIZED_DATA文件组(alter database add filegroup,每个数据库只能有一个MEMORY_OPTIMIZED_DATA文件组...
This article describes all the aspects of transactions that are specific to memory-optimized tables and natively compiled stored procedures. The transaction isolation levels in SQL Server apply differently to memory-optimized tables versus disk-based tables, and the underlying mechanisms are different. An...
MEMORY_OPTIMIZED = ON。 SQL 複製 CREATE TYPE dbo.typeTableD AS TABLE ( Column1 INT NOT NULL INDEX ix1, Column2 CHAR(10) ) WITH (MEMORY_OPTIMIZED = ON); 大功告成。 E. SQL Server 的必要條件 FILEGROUP 在Microsoft SQL Server 上,若要使用記憶體最佳化...
ALTER DATABASE SomeDatabase SET MEMORY_OPTIMIZED_ELEVATE_TO_SNAPSHOT=ON; GO 创建内存优化表,使用MEMORY_OPTIMIZED = ON来启用内存优化: CREATE TABLE [dbo].[CachedData] ( [Key] [VARCHAR](900) NOT NULL, [Data] [VARBINARY](MAX) NOT NULL, ...
ALTER DATABASE SomeDatabase SET MEMORY_OPTIMIZED_ELEVATE_TO_SNAPSHOT=ON; GO 创建内存优化表,使用MEMORY_OPTIMIZED = ON来启用内存优化: CREATE TABLE [dbo].[CachedData] ( [Key] [VARCHAR](900) NOT NULL, [Data] [VARBINARY](MAX) NOT NULL, ...
事务日志已满时,SQL Server 数据库引擎会发出9002 错误。 当数据库联机或恢复时,日志可能会满。 如果日志在数据库处于联机状态时已满,则该数据库仍会保持联机状态,但只能读取,不能更新。 如果在恢复期间日志已满,数据库引擎会将数据库标记为RESOURCE PENDING。 不管哪种情况,都需要用户执行操作才能使日志空间可用。
sql server 内存用作缓存 sql server内存表 内存优化表(Memory-Optimized Tables)是SQL Server 2014的新特性,目前仅适用于评估版(Evaluation Edition)、开发版(Developer Edition)和企业版(Enterprise Edition)。 本系列专题将从以下 5 个部分探讨内存优化表:...