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InterviewSolution
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What Is Identity? |
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Answer» Identity (or AutoNumber) is a COLUMN that automatically generates numeric values. A start and increment VALUE can be set, but most DBA LEAVE these at 1. A GUID column also generates numbers; the value of this cannot be CONTROLLED. Identity/GUID columns do not need to be indexed. Identity (or AutoNumber) is a column that automatically generates numeric values. A start and increment value can be set, but most DBA leave these at 1. A GUID column also generates numbers; the value of this cannot be controlled. Identity/GUID columns do not need to be indexed. |
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