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Tags: quiz
Yesterday I wrote the SQL Server Quiz, Can You Answer All These? post and asked 10 question. Today I will give you the answes
1) Name three differences between primary keys and unique constraints
A primary key cannot have any null values and a unique constraint can have one null value
A primary key is by default clustered and a unique constraint is not
A table can only have one primary key but can have more than one unique constraint
Here is a quick SQL Server quiz. Do you know the answer to all of these question? I will give the answers in a blog post tomorrow
1) Name three differences between primary keys and unique constraints
2) If your database is in simple recovery model and you run code that looks like this
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