STATISTICS TIME in queries
A friend is writing a training course on how the command STATISTICS TIME
can be used to tune query performance and asks for your help to complete a presentation. He requires two queries that return NBA team details where the host city had a 2017 population of more than two million.
NBA team details can be queried from the NBA Season 2017-2018
database and city populations can be queried by adding in tables from the Earthquakes
database.
Each query uses a different filter on the Teams
table.
Query 1
- Filters the
Teams
table usingIN
and three sub-queries
Query 2
- Filters the
Teams
table usingEXISTS
Diese Übung ist Teil des Kurses
Improving Query Performance in SQL Server
Interaktive Übung
Versuche dich an dieser Übung, indem du diesen Beispielcode vervollständigst.
___ ___ ___ ___ -- Turn the time command on