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(PHP 5, PECL OCI8 >= 1.1.0)
oci_new_cursor — Allocates and returns a new cursor (statement handle)
Allocates a new statement handle on the specified connection.
An Oracle connection identifier, returned by oci_connect() or oci_pconnect().
Returns a new statement handle, or FALSE on error.
Beispiel #1 Using REF CURSOR in an Oracle's stored procedure
<?php
// suppose your stored procedure info.output returns a ref cursor in :data
$conn = oci_connect("scott", "tiger");
$curs = oci_new_cursor($conn);
$stmt = oci_parse($conn, "begin info.output(:data); end;");
oci_bind_by_name($stmt, "data", $curs, -1, OCI_B_CURSOR);
oci_execute($stmt);
oci_execute($curs);
while ($data = oci_fetch_row($curs)) {
var_dump($data);
}
oci_free_statement($stmt);
oci_free_statement($curs);
oci_close($conn);
?>
Beispiel #2 Using REF CURSOR in an Oracle's select statement
<?php
echo "<html><body>";
$conn = oci_connect("scott", "tiger");
$count_cursor = "CURSOR(select count(empno) num_emps from emp " .
"where emp.deptno = dept.deptno) as EMPCNT from dept";
$stmt = oci_parse($conn, "select deptno,dname,$count_cursor");
oci_execute($stmt);
echo "<table border=\"1\">";
echo "<tr>";
echo "<th>DEPT NAME</th>";
echo "<th>DEPT #</th>";
echo "<th># EMPLOYEES</th>";
echo "</tr>";
while ($data = oci_fetch_assoc($stmt)) {
echo "<tr>";
$dname = $data["DNAME"];
$deptno = $data["DEPTNO"];
echo "<td>$dname</td>";
echo "<td>$deptno</td>";
oci_execute($data["EMPCNT"]);
while ($subdata = oci_fetch_assoc($data["EMPCNT"])) {
$num_emps = $subdata["NUM_EMPS"];
echo "<td>$num_emps</td>";
}
echo "</tr>";
}
echo "</table>";
echo "</body></html>";
oci_free_statement($stmt);
oci_close($conn);
?>
Hinweis:
In PHP versions before 5.0.0 you must use ocinewcursor() instead. This name still can be used, it was left as alias of oci_new_cursor() for downwards compatability. This, however, is deprecated and not recommended.
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
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