Collation Compatibility And Linked Servers

Greg Low points out an important property which can help linked server performance:

The on-premises versions of SQL Server have the ability to connect one server to another via a mechanism called Linked Servers.

Azure-based SQL Server databases can communicate with each other by a mechanism called External Tables. I’ll write more about External Tables soon.

With Linked Servers though, I often hear people describing performance problems and yet there’s a configuration setting that commonly causes this. In Object Explorer below, you can see I have a Linked Server called PARTNER.

Read on for more.

Related Posts

Join Estimation: Details On A Cardinality Estimator Change

Paul White shares some detail on a change to the Cardinality Estimator in SQL Server 2014: The question is now how to perform a coarse estimation of the equijoin cardinality of the highlighted steps, using the information available. The original cardinality estimator would have performed a fine-grained step-by-step histogram alignment using linear interpolation, assessed the join contribution […]

Read More

Tuning Apache Spark Applications

Vidisha Gupta has a few tips for tuning Apache Spark programs: Data Serialization – Serialization plays an important role in increasing the performance of any application. Spark provides two serialization libraries – Java Serialization: By default, spark uses Java’s ObjectOutputStream framework which can work with any class that implements java.io.serializable. This serialization is flexible but slow and […]

Read More

Categories

November 2017
MTWTFSS
« Oct Dec »
 12345
6789101112
13141516171819
20212223242526
27282930