SQL server 内存数据库

下面是一个SQLserver 内存数据库的简单例子

注意：C盘根目录需建立一个data目录

--1.创建库 内存表    CREATE DATABASE imoltpGO       ALTER DATABASE imoltp ADD FILEGROUP imoltp_mod CONTAINS MEMORY_OPTIMIZED_DATA ALTER DATABASE imoltp ADD FILE (name='imoltp_mod1', filename='c:\data\imoltp_mod1') TO FILEGROUP imoltp_mod ALTER DATABASE imoltp SET MEMORY_OPTIMIZED_ELEVATE_TO_SNAPSHOT=ON GO USE imoltp GO    --2 create a durable (data will be persisted) memory-optimized table -- two of the columns are indexed         CREATE TABLE dbo.ShoppingCart     ( ShoppingCartId INT IDENTITY(1,1) PRIMARY KEY NONCLUSTERED,      UserId INT NOT NULL INDEX ix_UserId NONCLUSTERED HASH WITH (BUCKET_COUNT=1000000),       CreatedDate DATETIME2 NOT NULL,      TotalPrice MONEY     )     WITH (MEMORY_OPTIMIZED=ON)GO    CREATE TABLE dbo.UserSession ( SessionId INT IDENTITY(1,1) PRIMARY KEY NONCLUSTERED HASH WITH (BUCKET_COUNT=400000), UserId int NOT NULL, CreatedDate DATETIME2 NOT NULL, ShoppingCartId INT, INDEX ix_UserId NONCLUSTERED HASH (UserId) WITH (BUCKET_COUNT=400000) )     WITH (MEMORY_OPTIMIZED=ON, DURABILITY=SCHEMA_ONLY)     GO      -- 3 insert data into the tables INSERT dbo.UserSession (UserId, CreatedDate, ShoppingCartId) VALUES (342, SYSDATETIME(), 4)INSERT dbo.UserSession (UserId, CreatedDate, ShoppingCartId) VALUES (65, SYSDATETIME(), NULL) INSERT dbo.UserSession (UserId, CreatedDate, ShoppingCartId) VALUES (8798, SYSDATETIME(), 1)INSERT dbo.UserSession (UserId, CreatedDate, ShoppingCartId) VALUES (80, SYSDATETIME(), NULL)INSERT dbo.UserSession (UserId, CreatedDate, ShoppingCartId) VALUES (4321, SYSDATETIME(), NULL) INSERT dbo.UserSession (UserId, CreatedDate, ShoppingCartId) VALUES (8578, SYSDATETIME(), NULL)INSERT dbo.ShoppingCart (UserId, CreatedDate, TotalPrice) values (8798, SYSDATETIME(), NULL) GO -- 4 创建内存表存储过程    if exists( select 1 from sysobjects where name = 'usp_AssignCart' )begindrop procedure usp_AssignCartendGO -- natively compiled stored procedure for assigning a shopping cart to a session CREATE PROCEDURE dbo.usp_AssignCart  @SessionId int, @test int output WITH NATIVE_COMPILATION, SCHEMABINDING, EXECUTE AS OWNER AS BEGIN ATOMIC WITH (TRANSACTION ISOLATION LEVEL = SNAPSHOT, LANGUAGE = N'us_english') DECLARE @UserId INT, @ShoppingCartId INT  SELECT @UserId=UserId,     @ShoppingCartId=ShoppingCartId  FROM dbo.UserSession  WHERE SessionId=@SessionId  IF @UserId IS NULL THROW 51000, N'The session or shopping cart does not exist.', 1     UPDATE dbo.UserSession SET ShoppingCartId=@ShoppingCartId WHERE SessionId=@SessionId     select @test = @ShoppingCartIdEND GO --2.老存储过程中调用，内存表存储过程use mydb goprint 'Create procedure sp_do_action_test... 'goif exists( select 1 from sysobjects where name = 'sp_do_action_test' )begin    drop procedure sp_do_action_testendgocreate procedure sp_do_action_test  @l_action_in int-- with encryptionasset rowcount 0set transaction isolation level read uncommitted-- 调用内存表存储过程 beginif @l_action_in = 1beginexec imoltp..usp_AssignCart 1,@error_no outputselect @error_info = '[500901]l_action_in[' + convert(varchar, @l_action_in) +']测试调用内存表存储过程'end -- 调用内存表存储过程 endset transaction isolation level read committedselect @error_no as 'error_no', @error_info as 'error_info'return @error_nogo--老存储过程测试exec mydb..sp_do_action_test 1