39 | Finance data from SQL Server into ObjectDB daily feedback from the community to see if I'm thinking about it right. We have a finance data mart that is appended to daily via an SSIS package. I would like to pull the data from SQL, add it to a bean ... to retrieve data from RDBMS tables and then use the same JPA entity classes to store the data in |
39 | Wrong data stored in time only fieldsThis may be related to the fix for the problem described in this thread: Wrong data stored in date ... are using the 2015g time zone data. While we cannot see a problem with date only fields (more testing ... , but see further explanation of some odd values below. Here is the data used to create the 9 records: 2015-12-19 18:12:53,000 |
38 | Data portabilityHi, I've never used an OODB, I'm looking for a starting point but a recurrent concern is the Data Portability one. More clear: what options / strategies do I have to export / move my data ... (based on JPA/JDO standards), but what about Data Portability? Regards, lorenzo.sm Lorenzo Solano |
38 | JPA and handling large data sets. But exporting large binary data sets is very slow. To avoid memory problems the binary data type is read step by step during the export with the query/setFirstResult() & setMaxResults(). But for large data sets the way is slow. We have an own entity for storing binary data (pictures, documents). Hint |
38 | Import data from MySQL mysql data into objectdb? gzdillon Lai Yang Currently to import data from other databases to ObjectDB ... data from MySQL using JPA as entity objects, detach the retrieved entity objects and then persist them into ObjectDB. An automatic data conversion utility is expected to be implemented as |
38 | Retrieve data of all entity classes in a single queryI have in an objectdb file 10 Entity Classes with some data in each (Athlete, Trainer, Stadium etc) This is the code I use to retrieve all Managed Types and data for the Athlete class Metamodel ... to get data of all classes without writing down 10 different queries (i.e. using the for loop)? I tried |
38 | index - data rewriteHi we have found that applying indexes on an existing table erases the data. Are we doing ... carefully if data is missing (very unlikely) or queries fail to return results (possible if a new ... )? What data is missing? Complete objects? specific fields in objects? fields related to the new index |
38 | Query vs Extent for retrieving dataI'm running into a problem where data that is retrieved via a Query comes out null, but when I ... explorer that all of the data is there. If I call Extent<PositionReportManagerBean> extent = pm.getExtent(PositionReportManagerBean.class, true); I get an Extent back with all of the data as I |
38 | Storing a tree of data (depth=3) can persist books. I have a problem with movies. The difference to the books? The depth of the data ... @Entity and @Embeddable) and a roleName (String) There are other data like list of directors, list ... regards, Thomas APPENDIX: I'm using lombok ... @Entity @Data @NoArgsConstructor |
38 | java.lang.ClassCastException in OSGi runtime when loading data from DB ClassCastExceptions on my "entity" classes when I try to read data from the DB. In a very old (2011?) forum ... . The entity obviously has to get loaded by all bundles in order to manipulate the data. This is the code ... the classes and having to move data around between the Entities and DTOs. Many thanks in advance |
