Difference between revisions of "Aggregate Functions"
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:* '''criteria: -''' A condition that specifies the object records that are part of the collection. | :* '''criteria: -''' A condition that specifies the object records that are part of the collection. | ||
::* | ::* Typically, the criteria examines a Lookup field in the specified object and matches that value against the ID of the current record. For example: | ||
:::<tt> </tt> | |||
:::''Learn more:'' [[Common:Filter Expressions in APIs|Filter Expressions in APIs]] | |||
::* Criteria must contain at least one index field. If index is combination of fields, the criteria must contain first field in that index. (It does not need to be a unique index, but an index is required, for performance.) | ::* Criteria must contain at least one index field. If index is combination of fields, the criteria must contain first field in that index. (It does not need to be a unique index, but an index is required, for performance.) | ||
::: | :::''Note:'' The maximum number indexes currently allowed in an index definition is 5. | ||
;Considerations: | ;Considerations: | ||
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:* Custom Access Criteria | :* Custom Access Criteria | ||
:* Reports | :* Reports | ||
Revision as of 20:33, 10 February 2012
These functions give you the ability to select a group of records from an arbitrary object and produce an aggregate value, without having to write Java code.
Methods Field Types SUM(object_id, object_field, criteria) number, currency, boolean AVG(object_id, object_field, criteria) number, currency, boolean MAXIMUM(object_id, object_field, criteria) number, currency, date MINIMUM(object_id, object_field, criteria) number, currency, date COUNT(object_id, criteria) n/a
where:
- object_id - Object Name or Object Identifier
- object_field - Field in the specified object
- Restriction: A Lookup field cannot be used.
- criteria: - A condition that specifies the object records that are part of the collection.
- Typically, the criteria examines a Lookup field in the specified object and matches that value against the ID of the current record. For example:
- Learn more: Filter Expressions in APIs
- Criteria must contain at least one index field. If index is combination of fields, the criteria must contain first field in that index. (It does not need to be a unique index, but an index is required, for performance.)
- Note: The maximum number indexes currently allowed in an index definition is 5.
- Considerations
-
- The SUM() of a boolean field gives a count of values that are yes/true.
- The AVG() of a boolean field gives the percentage that are yes/true.
Note: The results doenot take into account user-security restrictions. These functions operate on the entire set of records in an Object, regardless of user capabilities.
- Availability
The Aggregate Functions are available here:
- Validations
- Data Policies
- Criteria (Action Based - Add, Updae, Delete, Import Record, Ownership Change, Workflow State Change)
- Add/Update Record Action
- Calendar Data Policies - Criteria Not Support
- Calendar Data Policies - Add/Update Record Actions Aggregate functions will be evaluated.
- Default Values
- Formula Fields
They are not available here:
- Layout Rules
- Custom Access Criteria
- Reports