ObjectDB ObjectDB

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22

General Settings and Logging

" />   <url-history size="50" user="true" password="true" /> <log path="$objectdb/log/" max="8mb ... recently used databases in the Explorer easier. The <log> element <log path="$objectdb/log/" max ... file exceeds the maximum size, which is specified by the max attribute. The stdout and stderr
18

Index Definition

and MAX queries: SELECT MIN(p.x), MAX(p.x) FROM Point p Given an index on field x ObjectDB
18

ObjectDB Object Database Features

executions. Result range settings (first, max) - for paging. Query Structure SELECT (including NEW ... (COUNT, SUM, AVG, MAX, MIN). Query Expressions Path navigation expressions using the dot (.) operator
13

Database Replication and Clustering

the configuration: <server>     <connection port="6001" max="100" />     <data path="$objectdb/db
13

FROM clause (JPQL / Criteria API)

, INDEX, INNER, IS, JOIN, KEY, LEADING, LEFT, LENGTH, LIKE,LOCATE, LOWER, MAX, MEMBER, MIN, MOD, NEW
13

Is ObjectDB better than competing object databases?

queries (max, min, count, sum and avg). ObjectDB supports rich queries, including aggregate queries
13

JPA Query Structure (JPQL / Criteria)

GROUP BY / HAVING (groupBy, having, count, sum, avg, min, max, ...). Criteria ORDER BY (orderBy, Order, asc, desc).
13

JPA Criteria API Queries

, count, sum, avg, min, max, ...). ORDER BY clause (orderBy, Order, asc, desc). The links
13

Database Explorer

of elements. Use the [First] and [Max] fields to set the result range. Check [Disable Cache] to bypass
1

[ODB1] Chapter 5 - JDO Connections

before throwing an exception: System.setProperty("com.objectdb.lock.retry.max", "10"); // Wait

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?

  1. Search ObjectDB website
  2. Read the FAQ
  3. Follow the Tutorials
  4. View or post in the forum
  5. Search or file an issue
  6. Contact support