But beware unsigned math, if your columns are unsigned:
create table t( a int unsigned, b int unsigned);
Query OK, 0 rows affected (0.00 sec)
mysql> insert into t(a, b) values(0, 100);
Query OK, 1 row affected (0.00 sec)
mysql> select a-b from t;
+--+
| a-b
Ysgrifennodd Jason Pruim:
Okay, so I have been gooling all over trying to figure this out. I'm
sure it's easy enough to do, but I can't seem to find it.
All I want to do is figure out the difference between 2 fields. IE:
Field 1= 20
Field 2 =10
Difference between Field 1 & 2 is: 10
Any ideas?
If they're both numeric fields, then it's as easy as:
SELECT field1-field2 AS difference FROM table;
and if you always want a positive number:
SELECT ABS(field1-field2) AS difference FROM table;
HTH,
Dan
On 6/6/07, Jason Pruim <[EMAIL PROTECTED]> wrote:
Okay, so I have been gooling all over t
> Okay, so I have been gooling all over trying to
> figure this out. I'm sure it's easy enough to do,
> but I can't seem to find it.
> All I want to do is figure out the difference between
> 2 fields. IE:
> Field 1= 20
> Field 2 =10
> Difference between Field 1 & 2 is: 10
> Any ideas?
Umm, basi
