ObjectDB ObjectDB

Internal Website Search

21-30 of 200 resultsRefresh
16

UPDATE SET Queries in JPA/JPQL

instances of subclasses). For example, the following three equivalent queries increase the population size ... the population size of countries whose population size is smaller than a specified limit: UPDATE
16

ObjectDB Object Database Features

can manage databases of various sizes efficiently, ranging from kilobytes to terabytes. Platform ... . Capabilities and Limitations Database file size up to 128 TB (= 131,072 GB = 134,217,728 MB ... OF, SIZE). Java standard methods in queries. User defined methods in queries. Multi User Support
16

GROUP BY and HAVING clauses

their currency, and for each group returns the currency and the cumulative population size in countries ... , for which the cumulative population size and the average population size is then calculated. Any JPQL query
13

Is ObjectDB scalable? What are its limitations?

ObjectDB is highly scalable and can manage efficiently databases in a wide range of sizes, from a few Kilobytes to hundreds of Gigabytes and even Terabytes. ObjectDB can be used in small embedded ... supports: Database file size up to 128 TB (= 131,072 GB = 134,217,728 MB). Up to 2,147,483,648 entity
13

Database Explorer

, a default viewer (a Tree window by default) is opened with the query results, and the size of the result ... the combo boxes on the right side to choose font face, font size, font style, background color
9

SELECT clause (JPQL / Criteria API)

, depending on the size of the query result list and other factors. SELECT in Criteria Queries
9

Setting and Tuning of JPA Queries

is used to specify the result window size. Any result after hitting that specified maximum is ignored
9

FROM clause (JPQL / Criteria API)

, NOT, NULL, NULLIF, OBJECT, OF, OR, ORDER, OUTER, POSITION, SELECT, SET, SIZE, SOME, SQRT, SUBSTRING
1

[ODB1] Chapter 9 - ObjectDB Explorer

is valid, the default viewer (the browser window by default) is opened with the query results and the size ... side to choose font face, font size, font style, background color and foreground color. Click
1

javax.jdo.FetchPlan

should be unloaded prior to detachment. Since: JDO 2.0 int FETCH_SIZE_GREEDY For use with setFetchSize. For use with setFetchSize. Value: -1. Since: JDO 2.0 int FETCH_SIZE_OPTIMAL For use with setFetchSize ... getFetchSize() Return the fetch size, or FETCH_SIZE_OPTIMAL if not set, or FETCH_SIZE_GREEDY to fetch

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