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.

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Cache Servers Database Testing 90

Percona

JUNE 4, 2023

Introduction: MariaDB vs. MySQL The goal of this blog post is to evaluate, at a higher level, MariaDB vs. MySQL vs. Percona Server for MySQL side-by-side to better inform the decision making process. It is largely an unofficial response to published comments from the MariaDB Corporation. What is MariaDB?

Open Source 52

Open Source Servers Storage Scalability 52

All Things Distributed

AUGUST 17, 2011

But while this blog happily runs out of S3, the process of creating and updating the content still required a server to run my Moveable Type installation and hold the database. My templates and blog posts are now located in DropBox and thus locally cached at each machine I use. Amazon DynamoDB â?? Expanding the Cloud â??

Servers 126

Servers Social Media AWS Website 126

All Things Distributed

APRIL 27, 2011

The Amazon.com 2010 Shareholder Letter Focusses on Technology. In the 2010 Shareholder Letter Jeff Bezos writes about the unique technologies developed at Amazon.com over the years. To do so, weve leaned heavily on the core principles from the distributed systems and database research communities and invented from there.

Technology 151

Technology Technology AWS Storage 151

SQL Performance

MAY 20, 2022

The Compilation Process. The most important things to understand about server-side parameterization are it doesn’t happen all at once and a final decision to parameterize isn’t made until the end of the process. Names of tables and columns haven’t been resolved to database objects yet, and no type information is available.

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Cache Database Servers Testing 55

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.

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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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