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Un servizio Web XML è un'unità logica di applicazioni che fornisce dati e servizi ad altre applicazioni. Le applicazioni accedono ai servizi Web XML tramite protocolli Web universali e formati di dati quali HTTP, XML e SOAP.



La J2EE (Java 2 Enterprise Edition) è dedicata a tutti coloro che desiderano aggiungere il supporto della versione Enterprise di Java (ad esempio a Tomcat) e quindi le funzionalità avanzate come Enterprise JavaBeans etc.

Un servizio Web XML è un'unità logica di applicazioni che fornisce dati e servizi ad altre applicazioni. Le applicazioni accedono ai servizi Web XML tramite protocolli Web universali e formati di dati quali HTTP, XML e SOAP.

PostgreSQL

Home >PostgreSQL > Postgres check database is Master or Replica

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Ways to check if you are connected to a master or replica.

Use pg_is_in_recovery(); it returns true if replica.

On Master:
products=# SELECT pg_is_in_recovery(); pg_is_in_recovery ------------------- f (1 row)
On Replica:
products=# SELECT pg_is_in_recovery(); pg_is_in_recovery ------------------- t (1 row)
You can also query the Master view pg_stat_replication providing information and replica mode of connected slaves (potential,sync). On Master:
products=# select application_name, client_addr, sync_state from pg_stat_replication; application_name | client_addr | sync_state ------------------+----------------+------------ products3 | 172.22.100.127 | potential products2 | 172.22.100.120 | sync (3 rows)




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Well-formedness is a new concept introduced by [XML]. Essentially this means that all elements must either have closing tags or be written in a special form (as described below), and that all the elements must nest properly.


Well-formedness is a new concept introduced by [XML]. Essentially this means that all elements must either have closing tags or be written in a special form (as described below), and that all the elements must nest properly.




Oracle... Definizioni: Variabile bind





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