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Differentiate between a unique key and a primary key.
- By default, clustered index on column are created by primary key while nonclustered index are created by unique key.
- Primary key doesn't allow NULLs however unique key allows one NULL.
PART MARKING: We will only mark TWO of the four questions below but you must submit answers to all four. We will choose the questions we mark randomly and we will supply you with
East Coast Aquarium Relational Database
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which component of DBMS can be embedded in a program? The data manipulation language (DML) is a component which is embedded in a program.
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What are the advantages of creating a table from existing table?
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