ORA-03131: an invalid buffer was provided for the next piece

[chn262]

hello,

 

I not able to call a function with php oci8. i got an error. ORA-03131: an invalid buffer was provided for the next piece. 

the error seem to be at "oci_execute" statement.

anyone can help? thank you

 

// Establish a connection to Oracle database

$connection = oci_connect($database_username, $database_password, "(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=$database_host)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=$database_service_name)))");

if (!$connection) {
    $error_message = oci_error();
    echo "Failed to connect to Oracle: " . $error_message['message'];
    exit();
}

// Establish a connection to Oracle database

$connection = oci_connect($database_username, $database_password, "(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=$database_host)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=$database_service_name)))");

if (!$connection) {
    $error_message = oci_error();
    echo "Failed to connect to Oracle: " . $error_message['message'];
    exit();
}
echo "Connected to Oracle database successfully<br>";

// Prepare the PL/SQL call statement
$sql = "BEGIN :result := wm_mvs_mvd.get_employee_salary(:p_employee_id); END;";
$statement = oci_parse($connection, $sql);

if (!$statement) {
    $error_message = oci_error($connection);
    echo "Failed to prepare SQL statement: " . $error_message['message'];
    exit();
} else {
    echo "SQL statement prepared successfully<br>";
}

// Set the prefetch rows attribute for the statement
oci_set_prefetch($statement, 50000); // Adjust the buffer size as needed
if (!$statement) {
    $error_message = oci_error($connection);
    echo "Failed to set prefetch for SQL statement: " . $error_message['message'];
    exit();
} else {
    echo "Prefetch set successfully<br>";
}

// Bind the parameters
$p_employee_id = 1; // Example employee ID
oci_bind_by_name($statement, ':p_employee_id', $p_employee_id, 255);
oci_bind_by_name($statement, ':result', $result, 255); // Assuming the result length is 255 characters

if (!$statement) {
    $error_message = oci_error($connection);
    echo "Failed to bind parameters for SQL statement: " . $error_message['message'];
    exit();
} else {
    echo "Parameters bound successfully<br>";
}

// Execute the statement
$result = '';
if (!oci_execute($statement,OCI_COMMIT_ON_SUCCESS)) {
    $error_message = oci_error($statement);
    echo "Failed to execute SQL statement: " . $error_message['message'];
    exit();
} else {
    echo "SQL statement executed successfully<br>";
}
echo "Employee salary: $result"; // Output the result

// Free statement and close connection
oci_free_statement($statement);
oci_close($connection);

 

[gizmola]

Welcome to phpfreaks.  Please in the future use a code block.  I fixed your post this time.

I haven't done anything with Oracle and PHP in quite a while, but my first thought would be to have you try providing the type constant parameters.  Your $p_employee_id is an integer, yet you are providing a length pertinent to a varchar, which doesn't make sense.  

I'd experiment with this:

 

oci_bind_by_name($statement, ':p_employee_id', $p_employee_id, -1);
oci_bind_by_name($statement, ':result', $result, 255); // Assuming the result length is 255 characters

See what happens.

If that doesn't fix it, you also might try this:

oci_bind_by_name($statement, ':p_employee_id', $p_employee_id, -1, SQLT_INT);
oci_bind_by_name($statement, ':result', $result, 255, SQLT_CHR); // Assuming the result length is 255 characters

Or even:

oci_bind_by_name($statement, ':p_employee_id', $p_employee_id, -1, SQLT_INT);
oci_bind_by_name($statement, ':result', $result, -1, SQLT_CHR); 

 

Also the pl/sql code for the sproc might be helpful/necessary in figuring out what might be happening.