MySql select just one and order by date and blog?

Question

I want to sort data from mysql.

The shema looks like this:

  id    int(11)             
  objectId  int(11)             
  type          tinyint(4)          
  field     tinyint(4)          
  value     int(11)             
  date          int(10)

id  objectId    type    field   value   date
1   1631    0   10  2918    1183  746534
2   1631    0   11      1108    1183  746534

Now My problem is I can't order by objectId and date Any idea?

Answer 1

If you want to order by object id first then date:

SELECT * FROM table_name ORDER BY objectId, date

If you want to order by date then object id:

SELECT * FROM table_name ORDER BY date, objectId

To get the results in PHP in the same order:

$res = mysql_query ("SELECT * FROM table_name ORDER BY date, objectId");

while ($row = mysql_fetch_object($res))
{
    echo "Object id: $row->objectId Date: $row->date\n";
}

Answer 2

如果您的日期和对象ID相同，则按它们进行排序不会有太大用处