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Join performance in Objectdb

a command cause me half an hour and is running now! Each table has about 160K records. What formula can predict the time for such counting? TIA gzdillon Lai Yang Now, after 2 hours ... Anyway, this still doesn't justify execution time of hours. Since you didn't provide a test case (as

java.sql.Date equals comparison not working with CriteriaAPI

.DATE, 11);         cal.set(Calendar.HOUR_OF_DAY, 0);         cal.set(Calendar.MINUTE, 0 ... the above test case are removed:         cal.set(Calendar.HOUR_OF_DAY, 0);         cal.set(Calendar

Failed to read DB file while online backup is running

:748) I also paste my code for the online backuping which I launch automatically every few hours. I ... hours   File backupDirToTrim = QuantServerImpl.getInstance().getCompanyDB().getBackupDirectory

Group by date / time

(YEAR, MONTH, DAY, HOUR, MINUTE, SECOND) was just added to ObjectDB in build 2.2.8_02. For example ... ), MONTH(e.t), DAY(e.t), " +             "HOUR(e.t), MINUTE(e.t), SECOND(e.t) FROM MyEntity e

Wrong data stored in time only fields

" when it should be set to "01 Jan 1970 hh:mm:ss". Usually the value is wrong by 24 hours ... );         calendar.set(Calendar.HOUR, 0);                 return calendar.getTime();     }     public

Out of memory

Walkowski Some new data. After 5 hours of running database memory usage is quite high - attached ... . Few hours and the database is dead. I just uploaded heap dump from this crash to my ftp account

explorer NullPointerException

I studied ObjectDB a few hours ago and got some problems when use explorer. I run it and right-click in 'Open local database' window,and the all the pop menu item is gray and disabled,such as ‘new database’,'new directory','cut','copy' ... if I click 'tools---options' before open database

Mismatch client-server protocol prefix

Hello! We migrated one of our legacy webservices to Spring Boot/Spring MVC. Now i have a strange problem. At first the app runs perfectly for a couple of hours. After that it stops working and I get the following exception: 2015-06-17 01:16:28.450 ERROR 25197 --- [ajp-nio-8053-exec-4] o.a.c.c.C


="500" /> The problem occurs once after several hours of running. Maruta M Sedlakova The Database ... , where many threads are running concurently and usually after some hours of running. We would like to avoid

Database access error , Doctor hanging on trying to repair, production shutdown at our biggest customer

no activity for hours (0 processor usage), no error message, nothing hgzwicker Hans-Georg Zwicker ... Support After many hours of post mortem analysis, the cause of this database corruption is still unclear

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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