Which command delimits the end of a batch in a SQL script?
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Given R(a,b,c,d)a->ba->ca->db->d what kind of key is b?
Given R(a,b,c,d)a->ba->ca->db->d what kind of key is b?
Given the functional dependency a -> b a is the
Given the functional dependency a -> b a is the
A DROP statement can be undone with
A DROP statement can be undone with
After identifying main entities, you need to decide which __…
After identifying main entities, you need to decide which ____________ are associated with each entity.
A patient’s complete blood count (CBC) shows a hemoglobin of…
A patient’s complete blood count (CBC) shows a hemoglobin of 19 g/dL and a hematocrit of 54%. Which question should the nurse ask to determine possible causes of this finding?
A primary key / foreign key connection between 2 tables is k…
A primary key / foreign key connection between 2 tables is known as a(n)
When using a foreign key constraint, one table has a _______…
When using a foreign key constraint, one table has a ________________________ and another table has a corresponding _____________________________
Which DDL statement changes the structure of an existing tab…
Which DDL statement changes the structure of an existing table?
Select the statement with the correct syntax
Select the statement with the correct syntax