About INNER JOIN

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JDO Doc
1

Value.serialized

Annotation Element javax.jdo.annotations.Value String serialized Whether the value is to be stored serialized (into a single column of a join table). Returns: Whether the value is to be stored serialized (into a join table) Default value: "" Since: JDO 2.1
JPA Doc
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javax.persistence.ManyToMany

, the owning side and the non-owning, or inverse, side. The join table is specified on the owning ... annotation to specify the relationship field or property of the owning side. The join table
JPA Doc
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javax.persistence.JoinColumns

See Also: JoinColumn JoinColumn[] value The join columns that map the relationship. The join columns that map the relationship. Since: JPA 1.0
Forum
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Searching lists within objects

to have the real object at search time. Trying to use join is problematic as for every extra attribute I add to the search, I need to add 2 more joins. Obviously this is not satisfactory ... );         Root cdi = q.from(CDI.class);                 Join attributeJoin = cdi
Issue
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Issue with DISTINCT Select

.IndividualContact $1 LEFT JOIN $1.profile $2 WHERE ((TYPE($1)=class com.quasado.foundation.contact.api.model ... .contact.individual.IndividualContact $1 LEFT JOIN $1.profile $2 ORDER BY UPPER($1.profile.lastName ... !??   Alex Note: We're using the left join to select all entities, also those which have profile = null
Issue
1

Weird issue with variable naming

is that we do a LEFT JOIN on an embedded property as well as ordering is involved in selection ... of our left join variable becomes $1. We're also adding a custom function expression in where clause ... ; import javax.persistence.criteria.Join; import javax.persistence.criteria.JoinType; import
Issue
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queries more than 10 times slower using 2.8.1 versus 2.7.6

join o.linkedObjects l1 where o.classIdentifier = '(SI)' and o.type = 0 and o.state = 0 and (o ... 2: "select distinct o from ObjectNode o join o.properties p1 join o.properties p2 join o.properties p10 join o.properties p20 join o.properties p21 where o.classIdentifier = '(OP)' and (o
Forum
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find repeated records by JPQL

. You may try splitting the query into two queries - first execute the inner query and then use ... into two queries - first execute the inner query and then use the result collection as a parameter ... the inner query and then use the result collection as a parameter argument for the second outer query
Issue
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Query Execution Error

JOIN $1.mitgliedschaft $2 LEFT JOIN $2.abteilungen $3 LEFT JOIN $3.abteilung $4 WHERE (((NOT ((($2 ... .mitglied.Mitglied $1 LEFT JOIN $1.mitgliedschaft $2 LEFT JOIN $2.abteilungen $3 LEFT JOIN $3.abteilung $4 ... DISTINCT $1 FROM com.lexware.vereinsverwaltung.verein.mitglied.Mitglied $1 LEFT JOIN $1.mitgliedschaft
Issue
1

ClassCastException in Tuple.get

= cq.from(DemandAnswer.class); Join joinDemand = rootDemandAnswer.join("demand"); Join joinDemandingPerson = joinDemand.join("demandingPerson"); Join joinProvidingPerson = rootDemandAnswer.join("providingPerson"); joinDemand.join