Datumsdifferenz mit mySQL

[Nightshade]

Code:

DATEDIFF(expr,expr2) 
DATEDIFF() returns the number of days between the start date expr and the end date expr2. expr and expr2 are date or date-and-time expressions. Only the date parts of the values are used in the calculation. mysql> SELECT DATEDIFF('1997-12-31 23:59:59','1997-12-30');
        -> 1
mysql> SELECT DATEDIFF('1997-11-30 23:59:59','1997-12-31');
        -> -31

DATEDIFF() was added in MySQL 4.1.1.

Und nochmal zum nachlesen : Date and Time Functions