About table

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Forum
17

Table View for queries in the explorer ?

Hi Is there anyway to get the table view , rather than the tree view, when I'm running queries ... in the Explorer also by selecting [Window > Open Table Window] from the menu (or clicking the table ... a table view. More advanced versions of the Explorer will be released in the future. If you need specific improvements you may fill feature requests. pnewman
Forum
17

Warmup ( preLoad all table rows into memory )

Hi , I have 3 questions for objectdb : 1-) How can i preload all table rows into memory in objectdb ? So i can query fast. I have seen @Cacheable annotation. But i need warmup table to memory when my software boots up.   2-) Also for speed up I am inserting a message into table. But within 1 or 10
Forum
16

Duplicate a table

Hello, I would like to know if it's possible to copy the content of a table representing one class of object to another table whithout having to use java object (no object instantiation) ? In fact, I ... a table before erasing the content. Thanks. You will have to write code for this purpose. Use enhanced
Forum
16

enumeration table? how to on pure jpa?

Hello , I've relational db , and there is some table named enumerations with , some key and values ... application configs. Like; tablename : enumeration table rows: key            value servername ... @Table(name="enumerations") public class Enumerations { //Field binding possible like
Forum
16

Populating JavaFx table from ObjectDB

Please I have being working on an application, and I am experiencing some challenges populating my javaFx table from ObjectDB, Please I don't know if I can get a sample code for populating javaFx table from ObjectDB that could aid my Project. You may check the following links: https://ajimenezr
Forum
16

Field or Table Encryption

Is there a build-in way to encrypt object fields or entire "tables" with annotations?  If not, are there any recommended design patterns? Thanks Please see this feature request in the issue tracking. If you need selective encryption of types / fields - please describe your suggestion in that issue thread. mrbahr2003
Forum
16

impossible to drop a table with 50 million objects

when trying to execute in explorer (max heap size 1GByte) delete from LogEntry l it comes up with a Java heap error after 20 minutes of executing. How to empty such a table ?     This may be because the transaction size is limited by the heap size. You can try deleting these objects in batches
Forum
16

drop a column from table

Hi, I want to drop one column from my database table suppose i have 3 column (id, name, address) now i want to drop address. then what will be the query or procedure..   Just remove the field from the entity class. See Automatic Schema Evolution. Space in the database file will be reclaimed lazily
Forum
16

'DROP TABLE' in ODB?

Let's say I no longer need some entity in my project and after deleting all the objects of this type in database I want to remove this type from schema. How can I do this? Is there something like SQL 'drop table' in ODB? This is currently not supported. As far as I understand the main effect
Issue
16

reading from table gives Unexpected exception

reading from table gives Unexpected exception [ObjectDB 2.6.3] Unexpected exception (Error 990)   Generated by Java HotSpot(TM) 64-Bit Server VM 1.8.0_131 (on Windows 10 10.0). Please report this error on http://www.objectdb.com/database/issue/new com.objectdb.o.InternalException: null com.objectdb