How to multiple UPDATE statement in one query?

My query ($query3) giving error because I engaged 3 update statement in a query. It said "Characters found after end of SQL statement" or not constructed properly. I tested following 3 ways. but no wone working. If i use just 1 upade statement the it works fine. Please help me and tell me how can I make it work.

$conn = odbc_connect('Driver={Microsoft Access Driver (*.mdb)}; DBQ=E:\x.mdb','','');


$query3  = "UPDATE daily_index SET cscx_show = '$show_value', cscx_value = '$cscx_value' WHERE cscx_name = 'value';";
$query3 .= "UPDATE daily_index SET cscx_show = '$show_change', cscx_value = '$cscx_change' WHERE cscx_name = 'change';";
$query3 .= "UPDATE daily_index SET cscx_show = '$show_unchanged', cscx_value = '$cscx_percent_change' WHERE cscx_name = 'percent_change'";

//----------------------------------

$query3  = "UPDATE daily_index SET cscx_show = '$show_value', cscx_value = '$cscx_value' WHERE cscx_name = 'value';
UPDATE daily_index SET cscx_show = '$show_change', cscx_value = '$cscx_change' WHERE cscx_name = 'change';
UPDATE daily_index SET cscx_show = '$show_unchanged', cscx_value = '$cscx_percent_change' WHERE cscx_name = 'percent_change'";

//-----------------------------------

$query3 = "UPDATE daily_index SET 
         (cscx_show = '$show_value', cscx_value = '$cscx_value' WHERE cscx_name = 'value'),
         (cscx_show = '$show_change', cscx_value = '$cscx_change' WHERE cscx_name = 'change'),
         (cscx_show = '$show_unchanged', cscx_value = '$cscx_percent_change' WHERE cscx_name = 'percent_change')";


odbc_exec($conn, $query3) or die ("Error in update query 3. ");  

PHP:

 

Read this

http://blog.bubble.ro/how-to-make-multiple-updates-using-a-single-query-in-mysql/

 

Here's something more relevant.

http://stackoverflow.com/questions/9162671/multiple-sql-update-statements-in-single-query