Difference between revisions of "Unique Key Index"
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imported>Aeric (Created page with "A ''Unique Index'' is an index for which there are no duplicate index keys. With such an index, every key points to one and only one record. For example: :* In a case management…") |
imported>Aeric m (moved Unique Index to Unique Key Index) |
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Revision as of 19:36, 29 December 2011
A Unique Index is an index for which there are no duplicate index keys. With such an index, every key points to one and only one record.
For example:
- In a case management system, every case number is unique.
- In a list of companies, every company name is unique.
- In a list of U.S. citizens, every social security number is unique.
Learn more:
- Create an Index (Enable Unique Key option)
- Choosing Fields for Indexes