Question

If I have 2 type of data in a table, which is either ID1 or ID2 empty, how can I select the rows that ID1 is not empty and also is the latest inserted row first , then follow by the data with ID2 not empty?

Example:

 Data | ID1 | ID2

 1    | ok  | 

 2    |     |  ok

 3    | ok  |

and returns:

Data | ID1 | ID2

 3   | ok  |

 1   | ok  | 

 2   |     |  ok

Thank you very much.

Answer 1

Try this:

SELECT * 
FROM tablename
ORDERBY ID1 DESC, ID2 DESC