ALTERDATABASE<databasename>SETAUTOMATIC_TUNING ( FORCE_LAST_GOOD_PLAN =ON); 智慧型查詢處理 (IQP) 是能夠自動改善及最佳化工作負載效能的一組功能,其中有許多都是在 SQL Server 2019 中引進的新功能。 IQP 功能包括: 自適性聯結:SQL Server 會根據輸入資料列的實際數目,於執行階段期間動態選取聯結類型。
Intelligent Database: automatic tuningYesNoNoNoNo Intelligent Database: batch mode for row store1YesNoNoNoNo Intelligent Database: row mode memory grant feedbackYesNoNoNoNo Intelligent Database: approximate count distinctYesYesYesYesYes Intelligent Database: table variable deferred compilationYesYesYesYesYes...
Database Engine Tuning Advisor調整資料庫以達到最佳查詢效能。第一次使用時,具有系統管理認證的使用者必須初始化應用程式。 初始化之後,dbo 使用者可使用 Database Engine Tuning Advisor 來只微調他們所擁有的那些資料表。 如需詳細資訊...
SET TRANSACTION ISOLATION LEVEL (Transact-SQL) - SQL Server SET TRANSACTION ISOLATION LEVEL (Transact-SQL) SQL Server 的 Locks 物件 - SQL Server 了解SQLServer:Locks 物件,其提供有關個別資源類型的 SQL Server 鎖定資訊。 解決鎖定擴大所造成的封鎖問題 - SQL Server 本文說明如何判斷鎖定擴大是否造...
13222 10 否 自动故障转移 (automatic failover) 13223 10 否 从合作伙伴故障转移 13224 10 否 角色同步 13225 10 否 FORCE_SERVICE_ALLOW_DATA_LOSS 13226 10 否 add 13227 10 否 to 13228 10 否 发件人 13229 10 否 enable 13,230 10 否 disable 13231 10 ...
AutomaticTuningServerMode AutomaticTuningServerOptions AutomaticTuningServerReason BackupShortTermRetentionPolicyListResult BlobAuditingPolicyState CapabilityGroup CapabilityStatus CatalogCollationType CheckNameAvailabilityReason CheckNameAvailabilityRequest CheckNameAvailabilityResult CompleteDatabaseRestoreDefinition ConnectionPolic...
SQL Server ProfilerSQL Server Profiler 提供一個圖形化使用者介面,可用來監視資料庫引擎或 Analysis Services 的執行個體。 Database Engine Tuning AdvisorDatabase Engine Tuning Advisor 可協助您建立一組最佳的索引、索引檢視表與分割區。 Data Quality Client提供相當簡單且高度直覺式的圖形使用者介面來連接 DQS 伺...
Applies to: SQL Server (Starting with SQL Server 2019 (15.x)), Azure SQL Database and Azure SQL Managed Instance Enables an optimized mechanism for query plan forcing, applicable to all forms of plan forcing, such asQuery Store Force Plan,Automatic Tuning, or theUSE PLANquery hint. The de...
● ESXi host failures tests were performed to verify automatic failover of SQL Server virtual machines and autorecovery of databases without any consistency issues.Validated hardware and softwareTable 12 lists the hardware and software versions used during the ...
Using Always On availability groups with synchronous replication that supports automatic failover capabilities, enterprises can achieve seamless database availability across the database replicas configured. Figure 29 shows a scenario in which an Always On availability group is...