Überwachung von speicheroptimierten temporalen Tabellen mit Systemversionsverwaltung

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Gilt für: SQL Server 2016 (13.x) und höher Azure SQL-DatenbankAzure SQL Managed Instance

Sie können vorhandene Ansichten verwenden, um die Speicherauslastung für jede speicheroptimierte Tabelle mit Systemversionsverwaltung im Detail und zusammengefasst nachzuverfolgen.

Detailinformationen zur Speicherauslastung (getrennt nach Haupttabelle mit Systemversionsverwaltung und interner Stagingverlaufstabelle):

--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'
;

Zusammenfassung der Speicherauslastung (Gesamtauslastung für eine speicheroptimierte Tabelle mit Systemversionsverwaltung):

--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
;

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