Difference between revisions of "Unique Key Index"
From AgileApps Support Wiki
imported>Aeric m (moved Unique Index to Unique Key Index) |
imported>Aeric |
||
| (2 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
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