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Top Forums Shell Programming and Scripting return number of rows selected Post 302102061 by anbu23 on Monday 8th of January 2007 07:35:03 AM
Old 01-08-2007
The easiest way to find out how many rows a query will return is to use the COUNT function in SQL.

For operations that aren't queries (such as INSERTs, UPDATEs, and DELETEs), the do method returns the number of rows affected, -1 when it can't determine the right value, or else undef in case of failure.

Code:
$rows = $dbh->do("DELETE FROM Conference WHERE Language='REBOL'");
if (! defined $rows) {
  # failed, but this is not needed if RaiseError is active
} else {
  print "Deleted $rows rows\n";
}

 

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SQLSRV_ROWS_AFFECTED(3) 												   SQLSRV_ROWS_AFFECTED(3)

sqlsrv_rows_affected - Returns the number of rows modified by the last INSERT, UPDATE, or DELETE query executed

SYNOPSIS
int sqlsrv_rows_affected (resource $stmt) DESCRIPTION
Returns the number of rows modified by the last INSERT, UPDATE, or DELETE query executed. For information about the number of rows returned by a SELECT query, see sqlsrv_num_rows(3). PARAMETERS
o $stmt - The executed statement resource for which the number of affected rows is returned. RETURN VALUES
Returns the number of rows affected by the last INSERT, UPDATE, or DELETE query. If no rows were affected, 0 is returned. If the number of affected rows cannot be determined, -1 is returned. If an error occurred, FALSE is returned. EXAMPLES
Example #1 sqlsrv_rows_affected(3) example <?php $serverName = "serverNamesqlexpress"; $connectionInfo = array( "Database"=>"dbName", "UID"=>"username", "PWD"=>"password" ); $conn = sqlsrv_connect( $serverName, $connectionInfo); if( $conn === false ) { die( print_r( sqlsrv_errors(), true)); } $sql = "UPDATE Table_1 SET data = ? WHERE id = ?"; $params = array("updated data", 1); $stmt = sqlsrv_query( $conn, $sql, $params); $rows_affected = sqlsrv_rows_affected( $stmt); if( $rows_affected === false) { die( print_r( sqlsrv_errors(), true)); } elseif( $rows_affected == -1) { echo "No information available.<br />"; } else { echo $rows_affected." rows were updated.<br />"; } ?> SEE ALSO
sqlsrv_num_rows(3). PHP Documentation Group SQLSRV_ROWS_AFFECTED(3)
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