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Manual
20

Paths and Types in JPQL and Criteria API

counts all these objects (this is an aggregate query with no GROUP BY - all the objects are considered
JDO Doc
12

javax.jdo.Query

to obtain persistent instances, values, and aggregate data from the data store. The PersistenceManager ... must either be an expression contained in the grouping, or an aggregate evaluated once per group. Parameters ... field values (projections) and aggregate function results. Parameters: data - a comma-delimited
JDO Doc
8

setResult(data)

class. If set, this query will return expressions, including field values (projections) and aggregate ... on fields, or aggregate functions) to return from this query Since: JDO 2.0
JPA Doc
6

avg(x)

Method javax.persistence.criteria.CriteriaBuilder Expression avg(   Expression x ) Create an aggregate expression applying the avg operation. Parameters: x - expression representing input value to avg operation Returns: avg expression Since: JPA 2.0
JPA Doc
6

count(x)

Method javax.persistence.criteria.CriteriaBuilder Expression count(   Expression x ) Create an aggregate expression applying the count operation. Parameters: x - expression representing input value to count operation Returns: count expression Since: JPA 2.0
JPA Doc
6

countDistinct(x)

Method javax.persistence.criteria.CriteriaBuilder Expression countDistinct(   Expression x ) Create an aggregate expression applying the count distinct operation. Parameters: x - expression representing input value to count distinct operation Returns: count distinct expression Since: JPA 2.0
JPA Doc
6

greatest(x)

Method javax.persistence.criteria.CriteriaBuilder Expression greatest(   Expression x ) Create an aggregate expression for finding the greatest of the values (strings, dates, etc). Parameters: x - expression representing input value to greatest operation Returns: greatest expression Since: JPA 2.0
JPA Doc
6

least(x)

Method javax.persistence.criteria.CriteriaBuilder Expression least(   Expression x ) Create an aggregate expression for finding the least of the values (strings, dates, etc). Parameters: x - expression representing input value to least operation Returns: least expression Since: JPA 2.0
JPA Doc
6

max(x)

Method javax.persistence.criteria.CriteriaBuilder Expression max(   Expression x ) Create an aggregate expression applying the numerical max operation. Parameters: x - expression representing input value to max operation Returns: max expression Since: JPA 2.0
JPA Doc
6

min(x)

Method javax.persistence.criteria.CriteriaBuilder Expression min(   Expression x ) Create an aggregate expression applying the numerical min operation. Parameters: x - expression representing input value to min operation Returns: min expression Since: JPA 2.0