About number

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Manual
22

GROUP BY and HAVING clauses

of SQL: COUNT - returns a long value representing the number of elements. SUM - returns the sum ... (numeric, strings, dates). The following query counts for every letter the number of countries with names that start with that letter and the number of different currencies that are used by
Manual
21

Auto Generated Values

number generator for every database. This number generator is used to generate automatic object IDs ... number generator is also used to generate numeric values for primary key fields annotated by ... id; : } During a commit the AUTO strategy uses the global number generator to generate
Forum
21

How to retrieve the ObjectDB version number?

) method to get the version number?   Peter       It is not JPA portable, but you should be able
Forum
21

Listing large number of complicated objects with paging.

every query execution (setMaxResults). Does that number affect? You may try running the query
Forum
21

Number of current connections

Is there any way to find out the number of current connections to the DB server? Currently not. You may subscribe to this feature request and update it according to your needs. natmaclin
Forum
20

large numbers of records

large numbers of records
Forum
20

order by string with numbers

order by string with numbers
Manual
16

Paths and Types in JPQL and Criteria API

. But more often they are used in JPQL path expressions that navigate to values of simple types (number, boolean ... and functions (e.g. for strings and for numbers), they can be compared by all six comparison operators ... (number, boolean, string, date). For a path expression to be valid the user defined persistable class
Manual
16

Database Management Settings

specifies the maximum number of concurrent threads that can be served by the database engine ... are completed. The optimal number is usually larger than the number of available CPU cores, but not ... attribute specifies the speed of the index building background process as a number between 10 and 70
JDO Doc
15

javax.jdo.spi.StateManager

- the field number currentValue - the current value of the field Returns: the new value for the field ... instance field - the field number currentValue - the current value of the field Returns: the new ... PersistenceCapable instance field - the field number currentValue - the current value of the field