我的SQL查询有什么问题?

SELECT id, 
       sageaccount, 
       sageid, 
       totalwithoutvat, 
       vat, 
       total, 
       invoicedate, 
       alloweditting, 
       finished, 
       CASE WHEN isposted = 1 THEN 'Posted on ' + posteddate 
           ELSE 'Not Posted' 
       END AS Posted 
FROM Invoices 
WHERE (sageaccount = @sageaccount)
SELECT id, 
       sageaccount, 
       sageid,