sql - In SMSS what's the difference between NULL and nothing, in a query result? -



sql - In SMSS what's the difference between NULL and nothing, in a query result? -

i know maybe newbie question, i'm wondering why null in result, , it's totally blank - shouldn't null?

as can see, remarks column has no background color of yellow indicates not null. (null values has.)

it contains empty string '' (or maybe spaces) different null because empty string set empty while null not set (nothing).

sql ssms sql-server-2008

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