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FROM clause (JPQL / Criteria API)

The FROM clause declares query identification variables that represent iteration ... does not provide a way to exclude descendant classes from iteration at the FROM clause level. JPA 2 ... over all the Country objects in the database: SELECT c FROM

Criteria Query From Elements

The interfaces in this group are in use for setting a criteria query FROM clause. Criteria Query Variables The from">FROM clause ... criteria queries by descendant interfaces of the From interface:


.criteriaInterface From<Z,X> Represents a bound type, usually an entity that appears in the from clause, but may also be an embeddable belonging to an entity in the from clause. Serves as a factory for Joins


From" title="Interface in javax.persistence.criteria">javax.persistence.criteria.FromFrom" title="Interface in javax.persistence.criteria">From<Z,X> getCorrelationParent()


From" title="Interface in javax.persistence.criteria">javax.persistence.criteria.FromSet< Return the joins that have been made from this bound type


From" title="Interface in javax.persistence.criteria">javax.persistence.criteria.Fromboolean isCorrelated() Whether the From object has been obtained as

substring(x, from, len)

.persistence.criteria">Expression<String> x,   int from,   ... > x - string expression from

substring(x, from)

.persistence.criteria">Expression<String> x,   int from) - string expression from - start position

substring(x, from, len)

/Expression" title="Interface in javax.persistence.criteria">Expression<T> from,   ... : x - string expression from

locate(x, pattern, from)

">Expression<T> from) Create ... >pattern - expression for string to be located from