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JDO Doc
53

InheritanceStrategy.SUPERCLASS_TABLE

Enum Constant javax.jdo.annotations.InheritanceStrategy SUPERCLASS_TABLE Since: JDO 2.1
Manual
42

Database Explorer

provides two types of viewer windows for viewing the database data. The Table window follows the approach of traditional visual database tools. Every row in the table represents a single object ... ] tabbed window or an object in a currently open Table or Tree window). You can open a new viewer
Manual
32

Auto Generated Values

sequence values. The Table Strategy The TABLE strategy is very similar to the SEQUENCE strategy ... EntityWithTableId { @GeneratedValue(strategy=GenerationType.TABLE, generator="tab") @Id long id; } ORM ... a sequence using a table to support this strategy. ObjectDB does not have tables, so the TABLE and SEQUENCE
Forum
26

Is there a function of "drop table" or "delete from table"?

Besides the em.remove() one by one, is there a function of "drop table" or "delete from table"? TIA ... manual, since "drop table" is often in debugging. I can not find "drop table" in this site BTW ... ! "drop table" or "delete from table" or "truncate" can clear the id counting. Any idea? Resetting
Manual
22

Logical Operators in JPQL and Criteria API

of logical operators, as shown in the following table: Set 1 - JPQL / SQL Set 2 - Java / JDO AND && OR ... must be one of: TRUE, FALSE, and NULL. The following table shows how the AND operator is evaluated based ... must be one of: TRUE, FALSE, and NULL. The following table shows how the OR operator is evaluated based
Forum
20

alter table

Hi: After a table built by real data, how to alter table structure, such as: alter table add column ... alter table add index ... TIA There are no tables is ObjectDB. Anyway, > alter table add column ... ). > alter table add index ... Add the index definition and rebuild the database using the Object Doctor
Forum
19

joining of tables

want  join tow table and generate a third table. Ex:  table 1: employee    table 2: address  and the generate table will be table 3: emp_add employee: e_id, e_name address: add_id, city, house_no; the third table will be like. emp_add: e_id, add_id i am using annotation like: in Employee class
Manual
19

Comparison in JPQL and Criteria API

ObjectDB supports two sets of comparison operators, as shown in the following table:   Set 1 - JPQL ... The following table shows how NULL values are handled by each comparison operator. One column presents ... . When both operands are not NULL (not shown in the table) the operator is evaluated to either TRUE or FALSE
Forum
19

How to Remove records from many to many relationship tables in JPA

have Relation tables    TransportationEvent  and Conclusion  , relations like @Entity public class ... database i have got another two table like Conclusion_TransportationEvent     and  TransportationEvent_Conclusion here my requirement is i need to delete  records in both tables (TransportationEvent
Forum
19

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