Sam Vanga

Blog Post

Standardize Table Aliases

What's wrong with the following code?
tsqlLine number Off | Hide | Select allSELECT    a.[BusinessEntityID]    , b.[FirstName]    , b.[LastName]FROM[HumanResources].[Employee] a    INNER JOIN [Person].[Person] b    ON...

2013-03-05

778 reads

Blog Post

Standardize Table Aliases

What’s wrong with the following code?
SELECT
a.[BusinessEntityID]
, b.[FirstName]
, b.[LastName]
FROM [HumanResources].[Employee] a
INNER JOIN [Person].[Person] b
ON b.[BusinessEntityID] = a.[BusinessEntityID]Nothing – except for my...

2013-03-05

894 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;
 

See possible answers