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…") |
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A ''Unique Index'' is an index | A ''Unique Key Index'' is an index in which there are no duplicate keys. With such an index, every key points to one and only one record. | ||
For example: | For example: | ||
:* In a | :* In a Case Management system, every case number is unique. | ||
:* In | :* In an index of companies, every company name is unique. | ||
:* In a list of U.S. citizens, every social security number is unique. | :* In a list of U.S. citizens, every social security number is unique. | ||
Latest revision as of 03:00, 12 October 2012
A Unique Key Index is an index in which there are no duplicate 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 an index 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