Some packages in oracle are functions, and that functions returns a cursor.
For example:
CREATE FUNCTION F_Function( p1 char(2), p2 int)
RETURN SYS_REFCURSOR
AS
my_cursor SYS_REFCURSOR;
BEGIN
OPEN my_cursor FOR SELECT * FROM allitems
WHERE (cod=p1)
AND (Number=p2);
RETURN my_cursor;
END F_Function;
Here is the code that allows to obtain data from a function that returns a cursor.
<pre>
<?php
$conn=oci_connect("server", "user", "pass");
if (!$conn) {
$e = oci_error();
trigger_error(htmlentities($e['message']), E_USER_ERROR);
}
//You must asign before.
$p1 = '03';
$p2 = 2012016191;
$stid = oci_parse($conn, 'begin :cursor := server.PKG_package.F_Function(:p1,:p2); end;');
$p_cursor = oci_new_cursor($conn);
//Send parameters variable value lenght
oci_bind_by_name($stid, ':p1', $p1,2);
oci_bind_by_name($stid, ':p2', $p2,10);
//Bind Cursor put -1
oci_bind_by_name($stid, ':cursor', $p_cursor, -1, OCI_B_CURSOR);
// Execute Statement
oci_execute($stid);
oci_execute($p_cursor, OCI_DEFAULT);
oci_fetch_all($p_cursor, $cursor, null, null, OCI_FETCHSTATEMENT_BY_ROW);
echo '<br>';
print_r($cursor);
?>
oci_new_cursor
(PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)
oci_new_cursor — 新規カーソル (ステートメントハンドル) を割り当て、それを返す
戻り値
新しいステートメントハンドル、あるいはエラー時に false を返します。
例
例1 Oracle ストアドプロシージャにおける REF CURSOR のバインド
<?php
// 以下のプロシージャを用意します
// create or replace procedure myproc(myrc out sys_refcursor) as
// begin
// open myrc for select first_name from employees;
// end;
$conn = oci_connect("hr", "hrpwd", "localhost/XE");
if (!$conn) {
$m = oci_error();
trigger_error(htmlentities($m['message']), E_USER_ERROR);
}
$curs = oci_new_cursor($conn);
$stid = oci_parse($conn, "begin myproc(:cursbv); end;");
oci_bind_by_name($stid, ":cursbv", $curs, -1, OCI_B_CURSOR);
oci_execute($stid);
oci_execute($curs); // REF CURSOR を、ステートメント ID のように利用します
while (($row = oci_fetch_array($curs, OCI_ASSOC+OCI_RETURN_NULLS)) != false) {
echo $row['FIRST_NAME'] . "<br />\n";
}
oci_free_statement($stid);
oci_free_statement($curs);
oci_close($conn);
?>
add a note
User Contributed Notes 3 notes
mgumiel at mgait dot com ¶
12 years ago
sixd at php dot net ¶
16 years ago
Because OCI8 uses "prefetching" to greatly improve returning query results, but Oracle doesn't support prefetching for REF CURSORs, application performance using REF CURSORs can be greatly improved by writing a PL/SQL function that pulls data from the REF CURSOR and PIPEs the output. The new function can be queried in a SELECT as if it were a table. See http://blogs.oracle.com/opal/2008/11/
converting_ref_cursor_to_pipe.html
