When Page Prefetching Takes a Back Seat – Exploring Trace Flag 652 in SQL Server

Learn how a trace flag affects SQL Server reading from disk and where this might be a useful thing for you to enable.

The Query Traceflag

Trace Flag Scope

SQL Server 2012 does not come up after service pack upgrade SP4

A failed SQL Server Service Pack upgrade is fixed with a trace flag.

Preparing Encryption with Trace Flags

Properly Persisted Computed Columns

Paul White walks through a new trace flag in SQL Server 2016 designed to yield better execution plans (and performance) for queries involving computed columns.

Trace Flag Status

Trace Flag 2389 and the new Cardinality Estimator

Erin Stellato shows the combined effect of different versions of the cardinality estimator and trace flag 2389 on an ascending key model.

Testing SQL Server Backup Performance with Trace Flag 3042

Starting with SQL Server 2008 a new feature which allowed us to create compressed backup files by pre-allocating space. This tip will look at the performance impacts of disabling pre-allocation of space using the 3042 SQL Server trace flag.

Trace Flag