php 한글 메뉴얼 도움말 검색 사이트 Returns the name or oid of the tables field [function.pg-field-table]

설명

mixed pg_field_table ( resource $result , int $field_number [, bool $oid_only = false ] )

pg_field_table() returns the name of the table that field belongs to, or the table's oid if oid_only is TRUE.

인수

result: PostgreSQL query result resource, returned by pg_query(), pg_query_params() or pg_execute() (among others).
field_number: Field number, starting from 0.
oid_only: By default the tables name that field belongs to is returned but if oid_only is set to TRUE, then the oid will instead be returned.

반환값

On success either the fields table name or oid. Or, FALSE on failure.

예제

Example #1 Getting table information about a field


<?php
$dbconn = pg_connect("dbname=publisher") or die("Could not connect");

$res = pg_query($dbconn, "SELECT bar FROM foo");

echo pg_field_table($res, 0);
echo pg_field_table($res, 0, true);

$res = pg_query($dbconn, "SELECT version()");
var_dump(pg_field_table($res, 0));
?>

위 예제의 출력 예시:

foo
14379580

bool(false)

주의

Note:
Returning the oid is much faster than returning the table name because fetching the table name requires a query to the database system table.

참고

pg_field_name() - Returns the name of a field
pg_field_type() - Returns the type name for the corresponding field number