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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.
what are the topics in data management
WHAT IS DSS? WRITE ITS REQUIREMENTS.
What are the various forms of data transparency? a) fragmentation transparency b) replication transparency c) location transparency
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