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<div id="book.pgsql" class="book">
 
 <h1 class="title">PostgreSQL</h1>
 
 
 <div id="intro.pgsql" class="preface">
  <h1 class="title">Introduzione</h1>
  <p class="para">
   PostgreSQL database is an open source product and available without
   cost. Postgres, developed originally in the UC Berkeley Computer
   Science Department, pioneered many of the object-relational concepts
   now becoming available in some commercial databases. It provides
   SQL92/SQL99 language support, transactions, referential integrity,
   stored procedures and type extensibility. PostgreSQL is an open source
   descendant of this original Berkeley code.
  </p>
 </div>
 
 
 







 




 







 






 



 



 




<ul class="chunklist chunklist_book"><li><a href="pgsql.setup.php">Installazione/Configurazione</a><ul class="chunklist chunklist_book chunklist_children"><li><a href="pgsql.requirements.php">Requisiti</a></li><li><a href="pgsql.installation.php">Installazione</a></li><li><a href="pgsql.configuration.php">Configurazione di Runtime</a></li><li><a href="pgsql.resources.php">Tipi di risorse</a></li></ul></li><li><a href="pgsql.constants.php">Costanti predefinite</a></li><li><a href="pgsql.examples.php">Esempi</a><ul class="chunklist chunklist_book chunklist_children"><li><a href="pgsql.examples-basic.php">Basic usage</a></li><li><a href="pgsql.examples-queries.php">Basic usage</a></li></ul></li><li><a href="ref.pgsql.php">PostgreSQL Funzioni</a><ul class="chunklist chunklist_book chunklist_children"><li><a href="function.pg-affected-rows.php">pg_affected_rows</a> — Restituisce il numero delle tuple coinvolte dall'ultimo comando</li><li><a href="function.pg-cancel-query.php">pg_cancel_query</a> — Annulla una query asincrona</li><li><a href="function.pg-client-encoding.php">pg_client_encoding</a> — Restituisce la codifica caratteri del client</li><li><a href="function.pg-close.php">pg_close</a> — Chiude una connessione PostgreSQL</li><li><a href="function.pg-connect.php">pg_connect</a> — Stabilisce una connessione PostgreSQL</li><li><a href="function.pg-connect-poll.php">pg_connect_poll</a> — Poll the status of an in-progress asynchronous PostgreSQL connection
   attempt</li><li><a href="function.pg-connection-busy.php">pg_connection_busy</a> — Riferisce se una connessione &egrave; occupata o meno</li><li><a href="function.pg-connection-reset.php">pg_connection_reset</a> — Rpristina la connessione (riconnette)</li><li><a href="function.pg-connection-status.php">pg_connection_status</a> — Restituisce lo stato di una connessione</li><li><a href="function.pg-consume-input.php">pg_consume_input</a> — Reads input on the connection</li><li><a href="function.pg-convert.php">pg_convert</a> — Converte i valori di un array associativo in una forma compatibile con i comandi SQL.</li><li><a href="function.pg-copy-from.php">pg_copy_from</a> — Inserisce le tuple in una tabella prendendole da un array</li><li><a href="function.pg-copy-to.php">pg_copy_to</a> — Copia una tabella in un array</li><li><a href="function.pg-dbname.php">pg_dbname</a> — Restituisce il nome del database</li><li><a href="function.pg-delete.php">pg_delete</a> — Cancella le tuple.</li><li><a href="function.pg-end-copy.php">pg_end_copy</a> — Esegue una sincronizzazione con il backend PostgreSQL</li><li><a href="function.pg-escape-bytea.php">pg_escape_bytea</a> — Aggiunge le sequenze di escape ai dati binari nel tipo bytea</li><li><a href="function.pg-escape-identifier.php">pg_escape_identifier</a> — Escape an identifier for insertion into a text field</li><li><a href="function.pg-escape-literal.php">pg_escape_literal</a> — Escape a literal for insertion into a text field</li><li><a href="function.pg-escape-string.php">pg_escape_string</a> — Aggiunge le sequenze di escape nei tipi text/char</li><li><a href="function.pg-execute.php">pg_execute</a> — Sends a request to execute a prepared statement with given parameters, and waits for the result</li><li><a href="function.pg-fetch-all.php">pg_fetch_all</a> — Carica tutte le tuple in un array</li><li><a href="function.pg-fetch-all-columns.php">pg_fetch_all_columns</a> — Fetches all rows in a particular result column as an array</li><li><a href="function.pg-fetch-array.php">pg_fetch_array</a> — Carica una tupla in un array</li><li><a href="function.pg-fetch-assoc.php">pg_fetch_assoc</a> — Recupera una riga come array associativo</li><li><a href="function.pg-fetch-object.php">pg_fetch_object</a> — Carica una tupla in un oggetto</li><li><a href="function.pg-fetch-result.php">pg_fetch_result</a> — Restituisce i valori da una risorsa di risultato</li><li><a href="function.pg-fetch-row.php">pg_fetch_row</a> — Carica una tupla in un array</li><li><a href="function.pg-field-is-null.php">pg_field_is_null</a> — Verifica se un campo &egrave; null</li><li><a href="function.pg-field-name.php">pg_field_name</a> — Restituisce il nome di un campo</li><li><a href="function.pg-field-num.php">pg_field_num</a> — Restituisce la posizione del campo specificato</li><li><a href="function.pg-field-prtlen.php">pg_field_prtlen</a> — Restituisce la lunghezza &quot;stampabile&quot; di un valore</li><li><a href="function.pg-field-size.php">pg_field_size</a> — Restituisce la reale dimensione di memorizzazione del campo</li><li><a href="function.pg-field-table.php">pg_field_table</a> — Returns the name or oid of the tables field</li><li><a href="function.pg-field-type.php">pg_field_type</a> — Restituisce il nome del tipo del campo specificato</li><li><a href="function.pg-field-type-oid.php">pg_field_type_oid</a> — Returns the type ID (OID) for the corresponding field number</li><li><a href="function.pg-flush.php">pg_flush</a> — Flush outbound query data on the connection</li><li><a href="function.pg-free-result.php">pg_free_result</a> — Libera la memoria allocata per i risultati</li><li><a href="function.pg-get-notify.php">pg_get_notify</a> — Ottiene il messaggio SQL NOTIFY</li><li><a href="function.pg-get-pid.php">pg_get_pid</a> — Ottiene l'ID del processo del backend</li><li><a href="function.pg-get-result.php">pg_get_result</a> — Recupera i risultati di una query asincrona</li><li><a href="function.pg-host.php">pg_host</a> — Restituisce il nome dell'host associato alla connessione</li><li><a href="function.pg-insert.php">pg_insert</a> — Inserisce un array in una tabella.</li><li><a href="function.pg-last-error.php">pg_last_error</a> — Restituisce l'ultimo messaggio d'errore di una connessione</li><li><a href="function.pg-last-notice.php">pg_last_notice</a> — Restituisce l'ultimo messaggio di notifica dal server PostgreSQL</li><li><a href="function.pg-last-oid.php">pg_last_oid</a> — Restituisce l'oid dell'ultimo oggetto</li><li><a href="function.pg-lo-close.php">pg_lo_close</a> — Chiude un large object</li><li><a href="function.pg-lo-create.php">pg_lo_create</a> — Crea un large object</li><li><a href="function.pg-lo-export.php">pg_lo_export</a> — Esporta un large object salvandolo su un file</li><li><a href="function.pg-lo-import.php">pg_lo_import</a> — Importa un large object da un file</li><li><a href="function.pg-lo-open.php">pg_lo_open</a> — Apre un large object</li><li><a href="function.pg-lo-read.php">pg_lo_read</a> — Legge un large object</li><li><a href="function.pg-lo-read-all.php">pg_lo_read_all</a> — Legge interamente un large object e lo manda direttamente al browser</li><li><a href="function.pg-lo-seek.php">pg_lo_seek</a> — Ricerca la posizione di un large object</li><li><a href="function.pg-lo-tell.php">pg_lo_tell</a> — Restituisce la posizione attuale in un large object</li><li><a href="function.pg-lo-truncate.php">pg_lo_truncate</a> — Truncates a large object</li><li><a href="function.pg-lo-unlink.php">pg_lo_unlink</a> — Cancella un large object</li><li><a href="function.pg-lo-write.php">pg_lo_write</a> — Scrive un large object</li><li><a href="function.pg-meta-data.php">pg_meta_data</a> — Ottiene la definizione di una tabella.</li><li><a href="function.pg-num-fields.php">pg_num_fields</a> — Restituisce il numero di campi</li><li><a href="function.pg-num-rows.php">pg_num_rows</a> — Restituiscein numero di tuple</li><li><a href="function.pg-options.php">pg_options</a> — Estrae le opzioni associate alla connessione</li><li><a href="function.pg-parameter-status.php">pg_parameter_status</a> — Looks up a current parameter setting of the server</li><li><a href="function.pg-pconnect.php">pg_pconnect</a> — Open a persistent PostgreSQL connection</li><li><a href="function.pg-ping.php">pg_ping</a> — Effettua il ping alla connessione del database</li><li><a href="function.pg-port.php">pg_port</a> — Restituisce il numero di porta associato alla connessione</li><li><a href="function.pg-prepare.php">pg_prepare</a> — Submits a request to the server to create a prepared statement with the
   given parameters, and waits for completion</li><li><a href="function.pg-put-line.php">pg_put_line</a> — Invia una stringa terminata da NULL al backend PostgreSQL</li><li><a href="function.pg-query.php">pg_query</a> — Esegue una query</li><li><a href="function.pg-query-params.php">pg_query_params</a> — Submits a command to the server and waits for the result, with the ability to pass parameters separately from the SQL command text</li><li><a href="function.pg-result-error.php">pg_result_error</a> — Restituisce i messaggio di errore associato al risultato</li><li><a href="function.pg-result-error-field.php">pg_result_error_field</a> — Returns an individual field of an error report</li><li><a href="function.pg-result-memory-size.php">pg_result_memory_size</a> — Returns the amount of memory allocated for a query result</li><li><a href="function.pg-result-seek.php">pg_result_seek</a> — Imposta l'offset di riga interno nella risorsa risultato</li><li><a href="function.pg-result-status.php">pg_result_status</a> — Recupera lo stato del risultato di una query</li><li><a href="function.pg-select.php">pg_select</a> — Seleziona delle tuple.</li><li><a href="function.pg-send-execute.php">pg_send_execute</a> — Sends a request to execute a prepared statement with given parameters, without waiting for the result(s)</li><li><a href="function.pg-send-prepare.php">pg_send_prepare</a> — Sends a request to create a prepared statement with the given parameters, without waiting for completion</li><li><a href="function.pg-send-query.php">pg_send_query</a> — Invia una query in modo asincrono</li><li><a href="function.pg-send-query-params.php">pg_send_query_params</a> — Submits a command and separate parameters to the server without waiting for the result(s)</li><li><a href="function.pg-set-chunked-rows-size.php">pg_set_chunked_rows_size</a> — Set the query results to be retrieved in chunk mode</li><li><a href="function.pg-set-client-encoding.php">pg_set_client_encoding</a> — Imposta la codifica del client</li><li><a href="function.pg-set-error-context-visibility.php">pg_set_error_context_visibility</a> — Determines the visibility of the context's error messages returned by pg_last_error
   and pg_result_error</li><li><a href="function.pg-set-error-verbosity.php">pg_set_error_verbosity</a> — Determines the verbosity of messages returned by pg_last_error 
   and pg_result_error</li><li><a href="function.pg-socket.php">pg_socket</a> — Get a read only handle to the socket underlying a PostgreSQL connection</li><li><a href="function.pg-trace.php">pg_trace</a> — iAbilita il tracciamento di una connessione PostgreSQL</li><li><a href="function.pg-transaction-status.php">pg_transaction_status</a> — Returns the current in-transaction status of the server</li><li><a href="function.pg-tty.php">pg_tty</a> — Restituisce il nome della tty associata alla connessione</li><li><a href="function.pg-unescape-bytea.php">pg_unescape_bytea</a> — Rimuove i caratteri di escape in modo binario per il tipo bytea</li><li><a href="function.pg-untrace.php">pg_untrace</a> — Disabilita il tracciamento di una connessione PostgreSQL</li><li><a href="function.pg-update.php">pg_update</a> — Modifica le tuple della tabella</li><li><a href="function.pg-version.php">pg_version</a> — Returns an array with client, protocol and server version (when available)</li></ul></li><li><a href="class.pgsql-connection.php">PgSql\Connection</a> — The PgSql\Connection class</li><li><a href="class.pgsql-result.php">PgSql\Result</a> — The PgSql\Result class</li><li><a href="class.pgsql-lob.php">PgSql\Lob</a> — The PgSql\Lob class</li></ul></div><?php manual_footer($setup); ?>