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ocicolumnisnull
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ocicolumnisnull

Name

ocicolumnisnull —

Synopsis

int ocicolumnisnull(stmt, col); int stmt: Statement handler int col: Column offset

Returns

TRUE if NULL or FALSE if not NULL

Description

Checks the NULL status of a coulmn and returns TRUE if the column contains a NULL value. For integer columns, this does not return TRUE if the column contains a value of 0 as a zero value is not construed as a NULL value. Column number starts at 1.

Version

Since versions 3.0.4 and 4.0

Example

Example 849. Display NULL columns

if (!$db = @ocinlogon("dev","dev", "ORCL")) {
    $error = ocierror();
    printf("CONNECT error: %s", $error["message"]);
    die();
}

if (!$stmt = @ociparse($db,"SELECT * FROM phone_numbers")) {
    $error = ocierror($db);
    printf("ociparse error: %s", $error["message"]);
} else {

    if (!@ociexecute($stmt)) {
        $error = ocierror($stmt);
        printf("OCIEXECUTE Failure. Error was: %s\n", $error["message"]);
    } else {
        
        echo "<TABLE BORDER=1>";
        echo "<TR><TD>EMAIL</TD><TD>NUMBER</TD></TR>\n";
        
        while (ocifetch($stmt)) {
            $email = ocicolumnisnull($stmt, "EMAIL") ? "NULL" : ociresult($stmt, "EMAIL");
            $phone = ocicolumnisnull($stmt, "PHONE_NUMBER") ? "NULL" : ociresult($stmt, "PHONE_NUMBER");
            printf("<TR><TD>%s</TD><TD>%s</TD></TR>\n", $email, $phone);
        }
        
        echo "</TABLE>";

    }
}

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