what are surrogate keys?
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Answer / sai suresh
surrogate key is an artificial key , it will generate
automatinclly in sequence it will act as a primary key when
the data is heighly denormalized.
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Answer / shiva
surrogate key is a artificial key or system generated
key.when ever a primary key violation occurs,by using
sequence generator t/m we generate surrogate keys
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Answer / deepthi pathuri
A surrogate key in a data warehouse is more than just a
substitute for a natural key.
(OR)
A surrogate key is frequently a sequential number (e.g. a
Sybase "identity column") but doesn't have to be. Having
the key independent of all other columns insulates the
database relationships from changes in data values or
database design and guarantees uniqueness.
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / pradeep
surrogate key is an autogenerated sequence in data warehouse
acts as primary key as the data in warehouse is highly
denormalised form.
| Is This Answer Correct ? | 0 Yes | 1 No |
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