ingres_unbuffered_query

(No version information available, might be only in CVS)

ingres_unbuffered_query — Send an unbuffered SQL query to Ingres

Описание

mixed ingres_unbuffered_query ( resource $link , string $query [, array $params [, string $types ]] )

ingres_unbuffered_query() sends the given query to the Ingres server.

The query becomes part of the currently open transaction. If there is no open transaction, ingres_unbuffered_query() opens a new transaction. To close the transaction, you can call either ingres_commit() to commit the changes made to the database or ingres_rollback() to cancel these changes. When the script ends, any open transaction is rolled back (by calling ingres_rollback()). You can also use ingres_autocommit() before opening a new transaction to have every SQL query immediately committed. Ingres allows only a single unbuffered statement to be active at any one time. The extension will close any active unbuffered statements before executing any SQL. In addition you cannot use ingres_result_seek() to position the row before fetching.

Замечание: Related Configurations
See also the ingres.describe and ingres.utf8 directives in Runtime Configuration.

Список параметров

link: The connection link identifier
query: A valid SQL query (see the Ingres SQL reference guide) in the Ingres documentation. See the query parameter in ingres_query() for a list of SQL statements that cannot be executed via ingres_unbuffered_query().
params: An array of parameter values to be used with the query
types: A string containing a sequence of types for the parameter values passed. See the types parameter in ingres_query() for the list of type codes.

Возвращаемые значения

ingres_unbuffered_query() returns a query result identifier when there are rows to fetch; else it returns FALSE when there are no rows, as is the case of an INSERT, UPDATE, or DELETE statement. To see if an error occurred, use ingres_errno(), ingres_error(), or ingres_errsqlstate().

Примеры

Пример #1 Issue a simple un-buffered select


<?php
$link = ingres_connect("demodb");

$result = ingres_unbuffered_query($link, "select * from user_profile");
while ($row = ingres_fetch_row($result)) {
    echo $row[1];
    echo $row[2];
}
?>

Пример #2 Passing query parameters to ingres_unbuffered_query()


<?php
$link = ingres_connect("demodb");

$params[] = "Emma";
$query = "select * from user_profile where up_first = ?";
$result = ingres_unbuffered_query($link, $query, $params);
while ($row = ingres_fetch_row($result)) {
    echo $row[1];
    echo $row[2];
}
?>

Пример #3 Inserting a BLOB with parameter types


<?php
$link = ingres_connect("demodb");

//Open a photo
$fh = fopen("photo.jpg","r");
$blob_data = stream_get_contents($fh);
fclose($fh);

//Prepare parameters
$params[] = $blob_data;
$params[] = 1201;

//Define parameter types
$param_types = "Bi";

$query = "update user_profile set up_image = ? where up_id = ?";
$result = ingres_unbuffered_query($link, $query , $params, $param_types);

if (ingres_errno())
{
    echo ingres_errno() . "-" . ingres_error() . "\n";
}
?>

Смотрите также

ingres_query() - Send an SQL query to Ingres
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_commit() - Commit a transaction
ingres_rollback() - Roll back a transaction
ingres_autocommit() - Switch autocommit on or off
ingres_set_environment() - Set environment features controlling output options
ingres_errno() - Get the last Ingres error number generated
ingres_error() - Get a meaningful error message for the last error generated