SQL Performance
MARCH 29, 2022
Simple parameterization has a number of quirks in this area, which can result in more parameterized plans being cached than expected, or finding different results compared with the unparameterized version. For the time being, let’s look at some examples using the Stack Overflow 2010 database on SQL Server 2019 CU 14. Users AS U.
SQL Performance
MARCH 22, 2022
This series doesn’t dwell too long on the basics but concentrates on less well-known aspects likely to trip up even the most experienced database professionals. In this first part, after a quick introduction, I look at the effects of simple parameterization on the plan cache. ALTER DATABASE SCOPED CONFIGURATION. sp_configure.
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SQL Performance
APRIL 18, 2022
Let’s look at some examples using the Stack Overflow 2010 database on SQL Server 2019 CU 14, with database compatibility set to 150. It’s important to remember the plan must be cached. Requesting an estimated plan from SSMS does not cache the plan produced (since SQL Server 2012). Dynamic Management Objects.
SQL Performance
JUNE 8, 2022
As in previous parts, code examples use the Stack Overflow 2010 database on SQL Server 2019 CU 16 with the following additional nonclustered index: CREATE INDEX [ IX dbo. This could be unsafe in case-sensitive databases. Let’s look at the plan cache: SELECT. Users Reputation ( DisplayName ) ] ON dbo.
SQL Performance
MAY 20, 2022
As in previous parts, most code examples use the Stack Overflow 2010 database on SQL Server 2019 CU 16 with the following additional nonclustered index: CREATE INDEX [ IX dbo. Names of tables and columns haven’t been resolved to database objects yet, and no type information is available. Let’s look at the plan cache: SELECT.
All Things Distributed
AUGUST 22, 2011
Today AWS has launched Amazon ElastiCache , a new service that makes it easy to add distributed in-memory caching to any application. Amazon ElastiCache handles the complexity of creating, scaling and managing an in-memory cache to free up brainpower for more differentiating activities. Amazon DynamoDB â?? Expanding the Cloud â??
SQL Performance
MARCH 30, 2021
I used the public Stack Overflow 2013 database ( download details ). The desired plan shape can also be obtained against the smaller Stack Overflow 2010 data set if that is more convenient. See Myth: SQL Server Caches a Serial Plan with every Parallel Plan for details. Creating cached expression values ( runtime constants ).
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