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ingres_unbuffered_query — Send an unbuffered SQL query to Ingres
$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.
Nota: Related Configurations
See also the ingres.describe and ingres.utf8 directives in Runtime Configuration.
linkThe connection link identifier
queryA 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().
Data inside the query should be properly escaped.
paramsAn array of parameter values to be used with the query
typesA string containing a sequence of types for the parameter values passed. See the types parameter in ingres_query() for the list of type codes.
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().
Example #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];
}
?>
Example #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];
}
?>
Example #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";
}
?>