Javascript debugger
Website design
↑
pg_last_oid
Returns the last row's OID
(PHP 4 >= 4.2.0, PHP 5)
string pg_last_oid ( resource result )
pg_last_oid() is used to retrieve the
OID assigned to an inserted row.
OID field became an optional field from PostgreSQL 7.2 and will not be present by default in PostgreSQL 8.1. When the OID field is not present in a table, the programmer must use pg_result_status() to check for successful insertion.
To get the value of a SERIAL field in an inserted
row, it is necessary to use the PostgreSQL CURRVAL
function, naming the sequence whose last value is required. If the
name of the sequence is unknown, the pg_get_serial_sequence
PostgreSQL 8.0 function is necessary.
PostgreSQL 8.1 has a function LASTVAL that returns
the value of the most recently used sequence in the session. This avoids
the need for naming the sequence, table or column altogether.
This function used to be called pg_getlastoid().
Parameters
- result
PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).
Return Values
A string containing the OID assigned to the most recently inserted
row in the specified connection, or FALSE on error or
no available OID.
Examples
Example 1942. pg_last_oid() example
<?php
$pgsql_conn = pg_connect("dbname=mark host=localhost");
$res1 = pg_query("CREATE TABLE test (a INTEGER) WITH OIDS");
$res2 = pg_query("INSERT INTO test VALUES (1)");
$oid = pg_last_oid($res2);
?>
| pg_query() |
| pg_result_status() |