ObjectDB ObjectDB

Internal Website Search

1-10 of 78 resultsRefresh

Date and Time in JPQL and Criteria Queries

such functions as an extension. ObjectDB supports 6 functions for extracting the YEAR, MONTH, DAY, HOUR, MINUTE and SECOND. For example: YEAR({d '2011-12-31'}) is evaluated to 2011. MONTH({d '2011-12-31 ... that extract date parts:   Expression<Integer> year = cb.function("year", Integer.class, date

TemporalType injection with Calendar using JPA

,endDayOfWeek=1,endTime=3600000,endTimeMode=2]],firstDayOfWeek=2,minimalDaysInFirstWeek=4,ERA=1,YEAR=2011,MONTH=4,WEEK_OF_YEAR=22,WEEK_OF_MONTH=5,DAY_OF_MONTH=30,DAY_OF_YEAR=150,DAY_OF_WEEK=2,DAY_OF_WEEK_IN_MONTH ... ]],firstDayOfWeek=2,minimalDaysInFirstWeek=4,ERA=1,YEAR=2011,MONTH=4,WEEK_OF_YEAR=22,WEEK_OF_MONTH=5,DAY_OF_MONTH

Group by date / time

Hi, I'm trying to create reporting query that will return entities grouped by year / mont / day. Each entity has it's own field that holds java.lang.Date. There is no function like YEAR(), MONTH() or ... stats WHERE YEAR(record_date) = 2009 GROUP BY YEAR(record_date), MONTH(record_date) or maybe

Eclipse Public License - v 1.0

to this Agreement will bring a legal action under this Agreement more than one year after the cause of action arose

ObjectDB Object Database Features

data structures and algorithms (as a result of years of R&D). Outperforms competing products

Should I use ObjectDB and JDO?

and only found 3, and they are 13 years old and don't cover annotations. Is JDO and object databases ... have about 10 years of development experience with GemStone S, moderate experience playing with db4o, and now several years with Objectdb. I have also spent many, many hours over many years comparing DBMS

General Performance Issues Illustrated with a Specific Method

()); if (getAgeYears() > 12) { setAge(period.getYears() + " years."); } else if (getAgeYears() > 0) { setAge(period.getYears() + " years and " + period.getMonths() + " months ... have been following these documents for about 7 years now. You do not try to uderstand the issue, instead try to pass

ObjectDB future

Hi, For how long ObjectDB will exist and will be actively maintained? Will it still be there in 10 years? In 20 years? Thanks. randomguy Anton Yes, ObjectDB is an active project and will probably be here in the next 10, 20 and 50 years. Your question is fair because the ODBMS market in general

[ODB1] Chapter 7 - JDOQL Queries

child by not more than 25 years (assuming the child at position 0 is the older child). Support ... ); The first four lines of code prepare a Date instance representing the first day of the year 2000 ... by not more than 25 years (a similar query, but not JDO portable, is shown in section 7.2

Negative snapshot user count exception

with ObjectDB for a long time (I think 2 years?) without these issues, two possible factors ... . Rolling back to 2.3.x would be a problem because development work I did this year relies on fixes ... "Negative snapshot user count" report (issue #556) was fixed 2 years ago. Possibly this is another bug

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