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Numbers in JPQL and Criteria Queries

operators are supported by JPA: 2 unary operators: + (plus) and - (minus). 4 binary operators ... value and a double value is double. The ABS Function The ABS function removes the minus sign from ... Operators Creation of the unary minus (-) operator and the ABS and SQRT functions requires

Glassfish , OpenEJB Realm

Hello , i'm developing EJB Application. I was in dilemma using OpenEJB and Glassfish. They all support JDBC Realm but i want to use only ObjectDB solution. So , there is no JPA Realm for any application server.Thats big minus for objectdb. I will try to integrate for glassfish or openejb jparealm

[ODB1] Chapter 8 - ObjectDB Server

attribute eliminates the inherited address restriction. The minus value in the delete attribute

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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