Questions tagged «memory-grant»

3
过多的排序内存授予
为什么这个简单的查询被授予这么多的内存? -- Demo table CREATE TABLE dbo.Test ( TID integer IDENTITY NOT NULL, FilterMe integer NOT NULL, SortMe integer NOT NULL, Unused nvarchar(max) NULL, CONSTRAINT PK_dbo_Test_TID PRIMARY KEY CLUSTERED (TID) ); GO -- 100,000 example rows INSERT dbo.Test WITH (TABLOCKX) (FilterMe, SortMe) SELECT TOP (100 * 1000) CHECKSUM(NEWID()) % 1000, …

1
SQL Server何时会发出有关过多的内存授予的警告?
产生“过度拨款”执行计划警告的条件是什么? 查询内存授权检测到“ ExcessiveGrant”,这可能会影响可靠性。授予大小:初始5128 KB,最终5128 KB,已用16 KB。 短信服务 计划浏览器 Showplan XML <Warnings> <MemoryGrantWarning GrantWarningKind="Excessive Grant" RequestedMemory="5128" GrantedMemory="5128" MaxUsedMemory="16" /> </Warnings>

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