MS SQL Server Interview Question:

PHP ODBC - How To Update Existing Rows in a Table?

Submitted by: Administrator

Updating existing rows in a table requires to run the UPDATE statement with a WHERE clause to identify the row. The following sample script updates one row with two new values:

<?php
$con = odbc_connect('ggl_SQL_SERVER','sa','GlobalGuideLine');

$sql = "UPDATE ggl_links SET notes='Nice site.', counts=8"
. " WHERE id = 102";
$res = odbc_exec($con, $sql);
if (!$res) {
print("SQL statement failed with error: ");
print(odbc_error($con).": ".odbc_errormsg($con)." ");
} else {
$number_of_rows = odbc_num_rows($res);
print("$number_of_rows rows updated. ");
}

odbc_close($con);
?>

If you run this script, you will get something like this:

1 rows updated.

Submitted by: Administrator