Killing a long transaction used to mean a rollback that took forever. SQL Server 2019 fixes that with Accelerated Database Recovery and its instant rollback.
SQL Server emergency? Email pinal@sqlauthority.com with URGENT in the subject line.
How to Execute Query Without Using F5 or Query Toolbar in SSMS? – Interview Question of the Week #224
How do you execute a query in SSMS without F5 or the Query Toolbar? An attendee in a private training asked for a unique way, and here is a less known method.
Last Known Actual Plan in SQL Server: Query Plan Stats
The last known actual plan is the plan of the most recent run of a cached query, with its real row counts. This post turns the feature on for one database, reads the plan with sys.dm_exec_query_plan_stats and compares estimated rows with actual rows.
SQL SERVER – Drop failed for Availability Group – Failed to Destroy the Windows Server Failover Clustering Group Corresponding to Availability Group
While recovering a cluster in ForceQuorum mode, dropping an availability group failed: Failed to destroy the WSFC group. Here is how I got past this error.
SQL SERVER – Installation Error: System.ArgumentNullException – Value Cannot be Null
A client automating SQL Server installs saw random failures: System.ArgumentNullException, Value cannot be null. Here is what Detail.txt showed and the cause.
SQL SERVER – How Do I Evaluate Monitoring Tools?
I evaluate monitoring tools by collection cost, historical context and usefulness in choosing a correction. Customer discussions shaped those three criteria.
Compiled Parameter Values in SQL Server: Read Them From the Cache
Compiled parameter values show which value SQL Server used when it built a cached plan. This post reads them from the plan cache with one query, then shows how the first caller shapes the plan for everyone after. It ends with the usual ways to break that link.
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