Function.oci-new-descriptor

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oci_new_descriptor — Initializes a new empty LOB or FILE descriptor

Inhaltsverzeichnis

Beschreibung

OCI-Lob oci_new_descriptor ( resource $connection [, int $type ] )


Allocates resources to hold descriptor or LOB locator.

Parameter-Liste

connection
type
  • Valid values for type are: OCI_D_FILE, OCI_D_LOB and OCI_D_ROWID.

Rückgabewerte

Returns a new LOB or FILE descriptor on success, FALSE on error.

Beispiele

=== #1 oci_new_descriptor() example

<?php
/* This script is designed to be called from a HTML form.
 * It expects $user, $password, $table, $where, and $commitsize
 * to be passed in from the form.  The script then deletes
 * the selected rows using the ROWID and commits after each
 * set of $commitsize rows. (Use with care, there is no rollback)
 */
$conn = oci_connect($user, $password);
$stmt = oci_parse($conn, "select rowid from $table $where");
$rowid = oci_new_descriptor($conn, OCI_D_ROWID);
oci_define_by_name($stmt, "ROWID", $rowid);
oci_execute($stmt);
while (oci_fetch($stmt)) {
    $nrows = oci_num_rows($stmt);
    $delete = oci_parse($conn, "delete from $table where ROWID = :rid");
    oci_bind_by_name($delete, ":rid", $rowid,===
 
 
 
<source lang="php">
 
<?php
/* Calling PL/SQL stored procedures which contain clobs as input
 * parameters (PHP 4 >= 4.0.6).
 * Example PL/SQL stored procedure signature is:
 *
 * PROCEDURE save_data
 *   Argument Name                  Type                    In/Out Default?
 *   ------------------------------ ----------------------- ------ --------
 *   KEY                            NUMBER(38)              IN
 *   DATA                           CLOB                    IN
 *
 */
 
$conn = oci_connect($user, $password);
$stmt = oci_parse($conn, "begin save_data(:key, :data); end;");
$clob = oci_new_descriptor($conn, OCI_D_LOB);
oci_bind_by_name($stmt, ':key', $key);
oci_bind_by_name($stmt, ':data', $clob, -1, OCI_B_CLOB);
$clob->write($data);
oci_execute($stmt, OCI_DEFAULT);
oci_commit($conn);
$clob->free();
oci_free_statement($stmt);
?>

Anmerkungen

Hinweis: In PHP versions before 5.0.0 you must use ocinewdescriptor() instead. This name still can be used, it was left as alias of oci_new_descriptor() for downwards compatability. This, however, is deprecated and not recommended.

Persönliche Werkzeuge