About update

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JDO Doc
3

javax.jdo.annotations.Key

ForeignKeyAction updateAction Update action to apply to the foreign key for the key. Update action to apply to the foreign key for the key. Returns: update action to apply to the foreign key for the key Default
JDO Doc
3

javax.jdo.annotations.Value

updateAction Update action to apply to any foreign key for the value. Update action to apply to any foreign key for the value. Returns: update action to apply to any foreign key for the value Default value
JPA Doc
3

javax.persistence.JoinColumn

to a primary key that is part of a foreign key. Default value: false Since: JPA 1.0 boolean updatable (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Default value: true Since: JPA 1.0
JPA Doc
3

javax.persistence.MapKeyColumn

at the table level. Default value: false Since: JPA 2.0 boolean updatable (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. Default value: true Since: JPA 2.0
JPA Doc
3

javax.persistence.MapKeyJoinColumn

Since: JPA 2.0 boolean updatable (Optional) Whether the column is included in SQL UPDATE statements generated by the persistence provider. (Optional) Whether the column is included in SQL UPDATE statements
Forum
3

DB Doctor sets type to "unknown" for new fields

and run DB Doctor on the exiting DB file in order to update the schema. The fields are added ... ) is set to unknown. Both are defined as Boolean in Java code. As a result, update operations ... . We are struggling to understand then why updates like the following fail to change the value from null
Forum
3

Database Inconsistency or corruption

2.6.8_02 im embedded mode. The problem is that data gets lost when updating an entity. 1 ... to the referenced Attributes and from the Attributes to the Values. Updating an ObjectValue means updating the referenced Attributes. Updating an Attribute means replacing a referenced Value with a new Value
Forum
3

Query results are not up to date for entities, not primitives

updates. But, when using the JPQL Query, the list are refreshed, and, when I querying for primitive fields like Strings, the list of primitives are loading refreshed too. Any variations on update ... the queries and explain how updates are performed? Note that updates by queries bypass the cache
JDO Doc
3

Element.updateAction

Annotation Element javax.jdo.annotations.Element ForeignKeyAction updateAction Update action to apply to any foreign key for the element Returns: update action to apply to any foreign key for the element Default value: javax.jdo.annotations.ForeignKeyAction.UNSPECIFIED Since: JDO 2.1
JPA Doc
3

executeUpdate()

Method javax.persistence.Query int executeUpdate() Execute an update or delete statement. Returns: the number of entities updated or deleted Throws: IllegalStateException - if called for a Java Persistence query language SELECT statement or for a criteria query TransactionRequiredException