<?php
// Connect to Oracle database.
// Username : Raju
// Password : Password
// Database : Database_name
$conn=OCILogon("Raju", "Password", "DATABASE_NAME");
if ( ! $conn ) {
echo "Unable to connect: " . var_dump( OCIError() );
die();
}
// Select Data...
// DESC[RIBE] COMPANY
// CompanyID VARCHAR2(10)
// CompanyName VARCHAR2(30)
// LastUserID VARCHAR2(15)
// LastDate DATE
//
$query = "SELECT * FROM Company";
$result = OCIParse($conn, $query);
OCIExecute($result, OCI_DEFAULT);
while (OCIFetchInto ($result, $row, OCI_ASSOC)) {
// Usage of OCIcolumnisnull()
if (OCIcolumnisnull($result, 'CompanyName')) {
print ( "<P>" . $row['CompanyID'] . "--->" . "Company Name NOT found !! " . "<P>" );
}
else {
print ("<P>" . $row['CompanyID'] . "--->" . $row['CompanyName'] . "<P>" );
}
}
// Close connection from Oracle...
OCILogoff($conn);
?>
oci_field_is_null
(PHP 5, PHP 7, PECL OCI8 >= 1.1.0)
oci_field_is_null — Checks if a field in the currently fetched row is null
Descrierea
Checks if the given field from the current row of
statement is null.
Parametri
-
statement -
A valid OCI statement identifier.
-
field -
Can be the field's index (1-based) or name.
Valorile întoarse
Returns true if field is null, false otherwise.
Exemple
Example #1 oci_field_name() example
<?php
// Create the table with:
// CREATE TABLE mytab (c1 NUMBER);
// INSERT INTO mytab VALUES (1);
// INSERT INTO mytab VALUES (NULL);
$conn = oci_connect("hr", "hrpwd", "localhost/XE");
if (!$conn) {
$m = oci_error();
trigger_error(htmlentities($m['message']), E_USER_ERROR);
}
$stid = oci_parse($conn, "SELECT * FROM mytab");
oci_execute($stid);
while (($row = oci_fetch_array($stid, OCI_RETURN_NULLS)) != false) {
$ncols = oci_num_fields($stid);
for ($col = 1; $col <= $ncols; $col++) {
var_dump(oci_field_is_null($stid, $col));
}
}
// Outputs:
// bool(false)
// bool(true)
oci_free_statement($stid);
oci_close($conn);
?>
Note
Notă:
In PHP versions before 5.0.0 you must use ocicolumnisnull() instead. This name still can be used, it was left as alias of oci_field_is_null() for downwards compatability. This, however, is deprecated and not recommended.
add a note
User Contributed Notes 1 note
Raju Joseph [RajuJoseph at usa dot net] ¶
21 years ago
