Last updated: Sat, 17 Jul 2004

XLVII. Ingres II Functions

소개

These functions allow you to access Ingres II database servers.

참고: If you already used PHP extensions to access other database servers, note that Ingres doesn't allow concurrent queries and/or transaction over one connection, thus you won't find any result or transaction handle in this extension. The result of a query must be treated before sending another query, and a transaction must be committed or rolled back before opening another transaction (which is automatically done when sending the first query).

주의

이 확장 모듈은 실험적입니다. 이 확장 모듈의 작동 -- 함수의 이름과 이 확장 모듈에 대한 모든 문서 자료에 대해서 -- 은 이후의 PHP 릴리즈에서 예고 없이 변경될 수 있습니다. 이 확장 모듈의 사용은 사용자의 책임하에 이루어집니다.

요구 사항

To compile PHP with Ingres support, you need the Open API library and header files included with Ingres II.

설치

In order to have these functions available, you must compile PHP with Ingres support by using the --with-ingres[=DIR] option, where DIR is the Ingres base directory, which defaults to /II/ingres. If the II_SYSTEM environment variable isn't correctly set you may have to use --with-ingres=DIR to specify your Ingres installation directory.

When using this extension with Apache, if Apache does not start and complains with "PHP Fatal error: Unable to start ingres_ii module in Unknown on line 0" then make sure the environment variable II_SYSTEM is correctly set. Adding "export II_SYSTEM="/home/ingres/II" in the script that starts Apache, just before launching httpd, should be fine.

런타임 설정

이 함수의 작동은 php.ini 설정에 영향을 받습니다.

표 1. Ingres II configuration options

Name	Default	Changeable
ingres.allow_persistent	"1"	PHP_INI_SYSTEM
ingres.max_persistent	"-1"	PHP_INI_SYSTEM
ingres.max_links	"-1"	PHP_INI_SYSTEM
ingres.default_database	NULL	PHP_INI_ALL
ingres.default_user	NULL	PHP_INI_ALL
ingres.default_password	NULL	PHP_INI_ALL

For further details and definition of the PHP_INI_* constants see ini_set().

리소스 종류

이 확장 모듈은 리소스형을 정의하지 않습니다.

상수 정의

이 확장 모듈은 다음의 상수를 정의합니다. 이는 확장 모듈을 PHP에 내장했거나, 실행시에 동적으로 읽어들일 경우에만 사용할 수 있습니다.

INGRES_ASSOC (integer)
INGRES_NUM (integer)
INGRES_BOTH (integer)

차례
ingres_autocommit -- Switch autocommit on or off
ingres_close -- Close an Ingres II database connection
ingres_commit -- Commit a transaction
ingres_connect -- Open a connection to an Ingres II database
ingres_fetch_array -- Fetch a row of result into an array
ingres_fetch_object -- Fetch a row of result into an object.
ingres_fetch_row -- Fetch a row of result into an enumerated array
ingres_field_length -- Get the length of a field
ingres_field_name -- Get the name of a field in a query result.
ingres_field_nullable -- Test if a field is nullable
ingres_field_precision -- Get the precision of a field
ingres_field_scale -- Get the scale of a field
ingres_field_type -- Get the type of a field in a query result
ingres_num_fields -- Get the number of fields returned by the last query
ingres_num_rows -- Get the number of rows affected or returned by the last query
ingres_pconnect -- Open a persistent connection to an Ingres II database
ingres_query -- Send a SQL query to Ingres II
ingres_rollback -- Roll back a transaction

ingres_autocommit

id3_set_tag

Last updated: Sat, 17 Jul 2004

add a note User Contributed Notes
Ingres II Functions

corysbrain-ondrugs at yahoo dot com
07-Jul-2007 09:04


My post below works but is *not* the correct way.  It only works because of default behavior.   I'll re-post my understanding of what is "correct" soon.

corysbrain-ondrugs at yahoo dot com
13-Feb-2007 06:57


On the three versions of Linux/Ingres I've worked on, I've always had to modify the following line in the example above:



while ($iirelation = ingres_fetch_object($link)) {



to:



while ($iirelation = ingres_fetch_object()) {



If not, PHP will return "Undefined property" notices.  



However,  it's my understanding that the following is the proper way to access the database (it works as expected):



<?php

// Connecting, selecting database

$link = ingres_connect('database', 'user', 'password')

   or die('Could not connect: ' . ingres_error($link));

echo 'Connected successfully';



// Select from a table that exists in all Ingres databases

$query = 'SELECT * FROM iirelation';

$rs = ingres_query($query,$link) or die('Query failed: ' .

ingres_error($link));



// Print results in HTML

// relid - table name

// relowner - table owner

echo "<table>\n";

while ($iirelation = ingres_fetch_object($rs)) {

   echo "\t<tr>\n";

   echo "\t\t<td>" . $iirelation->relid . "</td>\n";

   echo "\t\t<td>" . $iirelation->relowner . "</td>\n";

   echo "\t</tr>\n";

}

echo "</table>\n";



// Commit transaction

ingres_commit($link);

// Closing connection

ingres_close($link);

?>

mail at hannes-reinecke dot de
12-Dec-2002 03:09


If you try to use the 'Embedded Ingres' as it is delivered with certain CA products (e.g. TNG UHD), the referenced library '-lingres' is not available. You need to add '-lq -lframe' instead.

burckhardtNOSPAM at SNIPITOFFgsf dot de
23-Jan-2002 10:07


Hi,

I am currently migrating from MySQL to Ingres. Generally, almost ALL INGRES-functions that use arrays start with counter=1, NOT counter=0. Also, whereas MySQL-functions use $result as an argument, INGRES-functions use $connection instead.

Florian

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ingres_autocommit

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Last updated: Sat, 17 Jul 2004