Technical Article

Unused Indexes

This script will provide a list of indexes that are not used in a database. Indexes are overhead and any indexes not being used but are being updated cause additional load on a database. This looks at the following  items: User seeks, scans and lookups. If all three of these are zero and the User […]

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2020-04-21 (first published: )

4,178 reads

Technical Article

Missing index script

This script on missing indexes that SQL had found. SQL will track queries and provide suggestions on indexes it feels will provide improvements. You should not take this information and create all the indexes. Performance tuning can be an art and takes practice. This information should be reviewed and as a DBA implemented a little […]

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2020-04-20 (first published: )

11,375 reads

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Question of the Day

Using table variables in T-SQL

What happens if you run the following code in SQL Server 2022+?

declare @t1 table (id int);

insert into @t1 (id) values (NULL), (1), (2), (3);

select count(*)
from @t1
where @t1.id is distinct from NULL;
 

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