Question

I am getting a syntax error can anybody tell me why?

SELECT  c.clientid, c.clientname, c.billingdate, 
      (SELECT TOP 1 previousbalance FROM invoice i 
          WHERE i.client = c.clientid ORDER BY i.invoiceid DESC) AS remaining 
FROM client c 
ORDER BY clientname

What the secondary select is doing is getting the latest record for that clientid in the invoice table.

The program – HediSQl

SQL

And here is the error:

SQL Error (1064): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘1 previousbalance FROM invoice i WHERE i.client = c.clientid ORDER BY i.invoicei’ at line 1 */

Answer 1

Just guessing but it might indicate that you should replace TOP 1 with LIMIT 1 or WHERE ROWNUM < 2 LIMIT 1. What kind of DB are you using?