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Database Doctor

.odb above) is the path to the original (corrupted) database file. The second argument (new.odb

CRUD Database Operations with JPA

with the ease of use of object databases and second, a new JPA developer with some experience with SQL

Database Connection using JPA

of the createEntityManagerFactory method takes a map of persistence unit properties as a second parameter: Map<String

Comparison in JPQL and Criteria API

of every one of these methods is a criteria expression. The second argument (and the third argument in between

GROUP BY and HAVING clauses

cell contains the initial letter as a String object, the second cell contains the number of countries

General Settings and Logging

sockets become obsolete as a result of inactivity. The value is the timeout in seconds, where 0

JPA Primary Key

of the second entity object is 2, etc. Primary key values are not recycled when entity objects

Step 6: Design a BIRT Report Table

in the [Data Explorer] window (under the data set node) and dropping them on the second table row

[ODB1] Chapter 9 - ObjectDB Explorer

in the query form. The second tab window is filled at the moment of query execution with Java code

[ODB1] Chapter 7 - JDOQL Queries

candidate Extent, and in the second form, the candidate collection is automatically set

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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