About Object Database

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Forum
12

Queries are slow on a large database

out: how to get the total number of object in a database without retrieving everything? Alternatively ... Hi, I have a 12GB database with 787603 entries. It is much larger than usual ... have to scan the entire database file and is not using indexes. Therefore I think I am not doing
Issue
12

InternalException - error reading field from "queue" database

guess the problem is actually on writting the objects to the db. Running the database ... that is missing in this database. What do you store in that field? entity objects? embeddable objects? serializable objects? Did you use that specific database in replication? Maybe this is related
Forum
12

Searching lists within objects

want to search using cb.isMember passing an object. This however does NOT work. I'm uncertain how the database is doing its matching, but it looks to me like it matches using objectids, which means you can only match isMember if you have a database object. This does not help as I'm never going
Forum
12

Listing large number of complicated objects with paging.

all objects in database: In the case ... - there was OutOfMemory exception thrown by database - maybe by creating 55k ProductListTO() objects? I ... 'Product' (attached to this post) entities in database and I'm trying to speed listing them with paging
Issue
12

cannot delete objects after crash (see issue 2283)

after the crash we cannot delete specific objects, see screenshots of explorer. Database ... objectdb  meanwhile the database became completely unusable, we had to stop and run the Doctor. Find ... of the recovery failure is still in progress. we upload currently the database before Doctor
Forum
12

Database Inconsistency or corruption

entity. 2-) Problem Description I initialized the database with some ObjectValues. Persisting new ... part of the log file. Before the update operation, I dump the properties of the object I want to update ... , isPersisted:=true ... After the update Operation I also dump the properties of the object. ObjectValue ID
Manual
12

Auto Generated Values

number generator for every database. This number generator is used to generate automatic object IDs for entity objects with no primary key fields defined (as explained in the previous section). The same ... a primary key for every new entity object. These generated values are unique at the database level
Tutorial
12

Step 4: Add a Servlet Class [2011-05-02]

the next tutorial step) - a new Guest entity object is constructed and stored in the database. All the Guest entity objects are retrieved from the database and stored in the request's "guest" attribute ... ServletException, IOException { // Obtain a database connection: EntityManagerFactory
Tutorial
12

Step 4: Add a Servlet Class

the database. All the Guest entity objects are retrieved from the database and stored in the request's ... response) throws ServletException, IOException { // Obtain a database connection ... , response); } finally { // Close the database connection: if (em
Tutorial
12

Step 4: Add a Servlet Class [2011-05-02]

is constructed and stored in the database. All the Guest entity objects are retrieved from ... { // Obtain a database connection: EntityManagerFactory emf = (EntityManagerFactory ... ") .forward(request, response); } finally { // Close the database