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Number of current connections

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

JPA Primary Key

.lang.String. java.util. Date , java.sql. Date , java.sql.Time , java.sql.Timestamp. Any enum type ... EventId id; : } @Embeddable Class EventId { int sensorId; Date time; } Because entity objects

Online Backup

that reflects the current date and time (e.g.  201912312359 ) is created under the backup root

General Settings and Logging

(where represents the date ). A new log file is also generated when the log file exceeds the maximum size ... of the subsystem loggers are currently undocumented and can change at any time without notice

Comparison in JPQL and Criteria API

, comparing the content rather than the identity. Date values can be compared by using any comparison operator. Equality operators (=, , == , != ) on date values in queries follow the logic of equals

Step 2: Entity Class and Persistence Unit

java.io.Serializable; import java.sql. Date ; import javax.persistence.Entity; import javax.persistence ... ; private String name; private Date signingDate; // Constructors: public Guest() { } public Guest(String name) { this.name = name; this.signingDate = new Date (System.currentTimeMillis()); } // String

Step 2: Entity Class and Persistence Unit

.Serializable; import java.sql. Date ; import javax.persistence.Entity; import javax.persistence ... name; private Date signingDate; // Constructors: public Guest() { } public Guest(String name) { this.name = name; this.signingDate = new Date (System.currentTimeMillis()); } // String Representation

Step 2: Define a JPA Entity Class

.Serializable; import java.sql. Date ; import javax.persistence.Entity; import javax.persistence ... String name; private Date signingDate; // Constructors: public Guest() { } public Guest(String name) { this.name = name; this.signingDate = new Date (System.currentTimeMillis()); } // String Representation

Step 2: Define a JPA Entity Class

code: package guest; import java.io.Serializable; import java.sql. Date ; import javax.persistence.Entity ... @GeneratedValue Long id; private String name; private Date signingDate; // Constructors: public Guest() { } public Guest(String name) { this.name = name; this.signingDate = new Date

[ODB1] Chapter 3 - Persistent Classes

.util : Date , Locale , HashSet , TreeSet , ArrayList , LinkedList , Vector , HashMap , TreeMap ... it is automatically converted into an instance of the new up-to- date persistent class. The conversion ... automatically to the new type. If casting is illegal (for example from int to Date ) the field