Date Correlation Optimization

Monica Rathbun explains another quasi-hidden SQL Server configuration option:

According to MSDN – The DATE_CORRELATION_OPTIMIZATION database SET option improves the performance of queries that perform an equi-join between two tables whose date or datetime columns are correlated, and which specify a date restriction in the query predicate.

How many of you read what MSDN says and thinks “wuuuuuttt, English please”? I do.

Read on for the English translation.

Related Posts

Contrasting Flink with Kafka Streams

Sourabh Verma contrasts Apache Flink with Kafka Streams: Initially, I would like you all to focus on a few questions before comparing the frameworks:1. Is there any comparison or similarity between Flink and the Kafka?2. What could be better in Flink over the Kafka?3. Is it the problem or system requirement to use one over […]

Read More

Against Surrogate Keys on Junction Tables

Lukas Eder explains the costs of surrogate keys on tables intended to join multiple tables together: There is really no point in adding another column FILM_ACTOR_ID or ID for an individual row in this table, even if a lot of ORMs and non-ORM-defined schemas will do this, simply for “consistency” reasons (and in a few cases, because they […]

Read More

Categories

September 2017
MTWTFSS
« Aug Oct »
 123
45678910
11121314151617
18192021222324
252627282930