2行中的SQL查询 - 如何？

Question

以下错误,所以一定是错的,但是这样做的正确方法是什么:

$query = "SELECT * FROM tblProducts WHERE ProductId ='$SCId' AND SELECT * FROM tblProducts WHERE Cat ='$CatType' AND Type ='$TypeType'";

$ rsPrimary = mysql_query($ query)或die("Query'$ query'失败并显示错误消息:\"".mysql_error().'"'); $ NUM = mysql_numrows($ rsPrimary); mysql_close();

Answer 1

    SELECT * FROM tblProducts WHERE ProductId ='$SCId' 
                                  OR (Cat ='$CatType' AND Type ='$TypeType')