To concatenate multiple fields in SQL Server, we can use + operator.
SELECT FirstName, LastName, FirstName + ' ' + LastName as FullName FROM PersonalDetails
The above query would result like below
To filter records based on concatenated columns value, we can still use + operator and then comparison operator like below.
SELECT * FROM PersonalDetails WHERE FirstName + LastName LIKE '%hN%'
The above query would result below result
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