About data integrity

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Tutorial
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Step 5: Design a BIRT Report Chart

the [Select Chart Type] tab select Tube as the chart type and click Next. In the [Select Data] tab ... with the real data: In the next step we will add a table view of the same data to the report.
Manual
4

Server User List

under the server data directory the user is allowed to access: The required path attribute specifies a directory path relative to the root data directory. Permission to access a directory always includes ... permission to access any directory in the data directory. $user represents the user's username
Tutorial
4

Step 1: Install BIRT and ObjectDB Driver

We start by installing the BIRT development environment and the ObjectDB data source driver ... , and finally approving the installation and restarting the IDE. Installing the ObjectDB Data Source Driver To install the ObjectDB data source driver for BIRT: Open the [Install] dialog box by selecting Help
JDO Doc
3

javax.jdo.PersistenceManager

1.0 void deletePersistent(Object pc) Delete the persistent instance from the data store. Delete the persistent instance from the data store. This method must be called in an active transaction. The data store object will be removed at commit. Unlike makePersistent, which makes the closure
Manual
3

Index Definition

; : } Indexes in Queries ObjectDB manages a BTree for every index. A BTree is an ordered map data structure ... , but might be still more efficient than iteration over the entities data. A composite index on fields x and y
Manual
3

Database Replication and Clustering

the configuration:          <data path="$objectdb/db ... , $replication, under the server data root directory. Starting a new replication of an existing master database
Manual
3

DELETE Queries in JPA/JPQL

an alternative way for deleting entity objects. Unlike SELECT queries, which are used to retrieve data from the database, DELETE queries do not retrieve data from the database, but when executed, delete specified
Manual
3

Database Connection using JPA

of the database file on the server, relative to the server data root path. Connection URL Parameters ... is very useful in tests. However, to avoid the risk of losing data - the drop parameter is ignored
Manual
3

UPDATE SET Queries in JPA/JPQL

an alternative way for updating entity objects. Unlike SELECT queries, which are used to retrieve data from the database, UPDATE queries do not retrieve data from the database, but when executed, update
Manual
3

Comparison in JPQL and Criteria API

) expressions: c.president == null c.president != null Comparable Data Types Comparison is supported for values of the following data types: Values of numeric types, including primitive types (byte, short