通过

监视系统版本控制型内存优化临时表

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适用于：SQL Server 2016 (13.x) 及更高版本 Azure SQL 数据库 Azure SQL 托管实例

每个系统版本控制型内存优化表都可以使用现有视图来跟踪详细的和摘要性的内存占用情况。

详细的内存占用情况（按每个主要的系统版本控制型内部历史记录临时表进行拆分）：

--Details of memory consumption
WITH InMemoryTemporalTables
AS
   (
      SELECT SCHEMA_NAME ( T1.schema_id ) AS TemporalTableSchema
         , T1.object_id AS TemporalTableObjectId
         , IT.object_id AS InternalTableObjectId
         , OBJECT_NAME ( IT.parent_object_id ) AS TemporalTableName
         , IT.Name AS InternalHistoryStagingName
      FROM sys.internal_tables IT
      JOIN sys.tables T1 ON IT.parent_object_id = T1.object_id
      WHERE T1.is_memory_optimized = 1 AND T1.temporal_type = 2
   )
SELECT
   TemporalTableSchema
   , T.TemporalTableName
   , T.InternalHistoryStagingName,
      CASE
         WHEN C.object_id = T.TemporalTableObjectId
         THEN 'Temporal Table Consumption'
         ELSE 'Internal Table Consumption'
         END ConsumedBy
   , C.*
FROM sys.dm_db_xtp_memory_consumers C
JOIN InMemoryTemporalTables T
   ON C.object_id = T.TemporalTableObjectId OR C.object_id = T.InternalTableObjectId
   WHERE T.TemporalTableSchema = 'dbo' AND T.TemporalTableName = 'FXCurrencyPairs'
;

内存占用情况摘要（系统版本控制型内存优化表的总计）：

--Summary of memory consumption
WITH InMemoryTemporalTables
AS
   (
      SELECT SCHEMA_NAME ( T1.schema_id ) AS TemporalTableSchema
         , T1.object_id AS TemporalTableObjectId
         , IT.object_id AS InternalTableObjectId
         , OBJECT_NAME ( IT.parent_object_id ) AS TemporalTableName
         , IT.Name AS InternalHistoryStagingName
      FROM sys.internal_tables IT
      JOIN sys.tables T1 ON IT.parent_object_id = T1.object_id
      WHERE T1.is_memory_optimized = 1 AND T1.temporal_type = 2
   )
, DetailedConsumption
AS
(
   SELECT TemporalTableSchema
      , T.TemporalTableName
      , T.InternalHistoryStagingName
      , CASE
         WHEN C.object_id = T.TemporalTableObjectId
         THEN 'Temporal Table Consumption'
         ELSE 'Internal Table Consumption'
         END ConsumedBy
      , C.*
   FROM sys.dm_db_xtp_memory_consumers C
   JOIN InMemoryTemporalTables T
   ON C.object_id = T.TemporalTableObjectId OR C.object_id = T.InternalTableObjectId
)
SELECT TemporalTableSchema
   TemporalTableName
   , sum ( allocated_bytes ) AS allocated_bytes
   , sum ( used_bytes ) AS used_bytes
FROM DetailedConsumption
WHERE TemporalTableSchema = 'dbo' ANDTemporalTableName = 'FXCurrencyPairs'
GROUP BY TemporalTableSchema, TemporalTableName
;

另请参阅