SQLStudies

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Counting NULLs

Recently I was doing one of Kendra Little’s (b/t) SQL Server quizzes. Specifically the Quiz: COUNT() in SQL Server. As...

2018-07-16

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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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