About update

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Manual
22

Locking in JPA

update collisions resulting from simultaneous updates to the same data by two concurrent users. Locking ... that has to be updated or deleted is checked. An exception is thrown if it is found out that an update is being performed on an old version of a database object, for which another update has already been committed
Tutorial
20

Step 1: Install BIRT and ObjectDB Driver

for Java EE Developers. Update your existing Eclipse IDE for Java EE Developers environment by installing the BIRT plugins using the Eclipse Update Manager (updating Eclipse IDE with no Java EE support is more complicated because of BIRT dependencies and is not covered here). To update an existing
Forum
20

Update more than 10000 entities by an update query fails

Hello, following example tries to update more than 10000 entities by an update query. But only the first 10000 elements are updated. What's wrong?   public class updateMoreThan10000Elements ... .setFlushMode(FlushModeType.AUTO); { String query = "UPDATE " + MyModelElement.class
Manual
19

CRUD Database Operations with JPA [2011-02-11]

it to store, retrieve, update and delete database objects. Storing New Entity Objects The following ... is a very powerful query language and chapter 4 of this manual describes it in detail. Updating and Deleting ... when the transaction is committed. Updating an existing database object is similar. You have to obtain
Manual
19

CRUD Database Operations with JPA

it to store, retrieve, update and delete database objects. Storing New Entity Objects The following ... is a very powerful query language and chapter 4 of this manual describes it in detail. Updating and Deleting ... when the transaction is committed. Updating an existing database object is similar. You have to obtain
Manual
19

Running JPA Queries [2011-09-21]

other case. In addition, the Query interface defines a method for running DELETE and UPDATE queries: Query.executeUpdate - for running only DELETE and UPDATE queries. Ordinary Query Execution ... and UPDATE Query Execution (with executeUpdate) DELETE and UPDATE queries are executed using
Manual
19

Running JPA Queries

other case. In addition, the Query interface defines a method for running DELETE and UPDATE queries: Query.executeUpdate - for running only DELETE and UPDATE queries. Ordinary Query Execution ... and UPDATE Query Execution (with executeUpdate) DELETE and UPDATE queries are executed using
Forum
18

Updating Entities

with Entities not sending their updates to each other. I have two Entities in question at the moment ... . However, once a change has been made to paygradeDB after this visual load - the Employee table refuses to update ... validation checks and queries apart from UI function handlers. I also know that my code handles updating
Manual
18

Database Management Settings

" synchronized="false" />   update enabled="true" priority="40" /> update> element   update enabled="true" priority="40" /> The update> element specifies how new defined
Manual
16

Storing JPA Entity Objects

too much memory. The sample code above clears the persistence context after every 10,000 persists. Updates are flushed to the database before clearing, otherwise they would be lost. Updates that are sent ... until a commit. With no explicit commit, these updates are later discarded. The combination of clear