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. If the old type is inconvertible to the new type (for instance a change from int to Date ... conversions are supported: From any numeric type to any numeric type. In ... ordinal values (the default). From any type to Boolean or boolean (0

/EntityManager/createQuery_String">createQuery("SELECT COUNT(p) FROM Point p"); System.out.println ... > The query string ("SELECT COUNT(p) FROM Point p") instructs JPA to count all the Point objects ... ">createQuery("SELECT AVG(p.x) FROM Point p"); System.out.println("Average X: " + q2.

times. Referencing instances of other persistable types from multiple Aside from these constraints, an entity class is like any other Java class ... are represented from">in queries by entity names. By default

>double. Equivalent wrapper classes from package java.lang: Byte SELECT p FROM Point p WHERE p.x = 100 SELECT p FROM Point p WHERE p.x BETWEEN 50 AND 80 SELECT p FROM Point p WHERE p.x >= 50 AND p.x <= 80 By using

>) is returned if the substring is not found. The third argument (when present) specifies from ... and Trailing Characters The TRIM([[LEADING|TRAILING|BOTH] [char] FROM] str). TRIM(LEADING FROM ' UK ') is evaluated to

of the Service or from the Service infrastructure itself (for example, the duration of a page visit ... to ObjectDB Website, accessible from https://www.objectdb.com from Your jurisdiction. Your consent to this Privacy

accessing these databases from remote machines by TCP/IP. More details about client server mode vs. embedded ... program from the command line, as so: > java -cp <OBJECTDB_HOME> ... to the server only from the specified IP address. For instance, the "127.0.0.1" value

/manual/chapter4">Chapter 4 explains how to write the JDO metadata declaration. Aside from ... ), inheritance (even from a non persistent class), interface implementations, inner classes ... to exclude other fields from being stored in the database. It is recommended to explicitly define

There are various ways to retrieve objects from an ObjectDB database, as shown in ... for RDBMS. It provides object retrieval from the database according to a specified selectioPlan ... The query result is a subset of objects from the candidate collection

>PersistenceManagerFactory instance may manage a pool of free PersistenceManager instances. From ... is the same for both new database connections and database connections obtained from a pool. PersistenceManager instances obtained from that factory. Setting these flags