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Database Schema Evolution

, Byte, Short, Character, Integer, Long, Float, Double, BigInteger, BigDecimal and enum values

JPA Persistable Types

java.lang: Boolean, Byte, Short, Character, Integer, Long, Float and Double. java.math.BigInteger

ObjectDB Object Database Features

.Time and java.sql.Timestamp. Math types: java.lang.BigInteger and java.lang.BigDecimal. Collection ... Dates: java.util.Date, java.sql.Date, java.sql.Time and java.sql.Timestamp. Math: java.lang.BigInteger

Comparison in JPQL and Criteria API

, Double), BigInteger and BigDecimal can be compared by using any comparison operator. String values ... detailed above. Therefore, for example, a double value can be compared to a BigInteger instance

Index Definition

, Long, Float, Double. java.math.BigInteger, java.math.BigDecimal. java.lang.String. java.util.Date

JPA Primary Key

.lang: Byte, Short, Character, Integer, Long, Float, Double. java.math.BigInteger, java.math.BigDecimal

Numbers in JPQL and Criteria Queries

, but all the numeric types (byte, short, int, long, float, double, BigInteger, BigDecimal) are supported. Unary

[ODB1] Chapter 7 - JDOQL Queries

(Byte, Short, Character, Integer, Long, Float, Double), as well as BigInteger and BigDecimal ... (Byte, Character, Short, Integer, Long, Float, Double, and also BigInteger and BigDecimal ... (Byte, Short, Character, Integer, Long, Float, Double), String, Date, BigInteger and BigDecimal

[ODB1] Chapter 4 - JDO Metadata

. String and Integer), types defined in java.math (e.g. BigInteger), and java.util.Date. Collections

[ODB1] Chapter 3 - Persistent Classes

. java.math.BigInteger and java.math.BigDecimal Any array of persistent type, including multi

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.

Need Help?

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