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    oci_new_cursor

    (PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)

    oci_new_cursor — Alloue et retourne un nouveau curseur Oracle

    Description

    oci_new_cursor(resource $connection): resource|false

    Alloue un nouveau curseur Oracle sur la connexion spécifiée.

    Liste de paramètres

    connection

    Un identifiant de connexion Oracle, retourné par la fonction oci_connect() ou la fonction oci_pconnect().

    Valeurs de retour

    Retourne un nouveau gestionnaire de connexion, ou false si une erreur survient.

    Exemples

    Exemple #1 Utiliser un REF CURSOR issu d'une procédure enregistrée

    <?php
    // Prérequis :
    // crée ou remplace la procédure myproc(myrc out sys_refcursor) comme ceci
    // 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($curs); // Execute the REF CURSOR like a normal statement id
    while (($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);
    ?>

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    User Contributed Notes 3 notes

    up
    6
    mgumiel at mgait dot com
    12 years ago
    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);
    ?>
    up
    -1
    sixd at php dot net
    14 years ago
    Oracle 11.2 introduced support for REF CURSOR prefetching
    up
    -1
    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
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