You retrieve dates and times from the database in these ways.
Using any interface, as a string
Using ODBC, as a TIMESTAMP structure
Using embedded SQL, as a SQLDATETIME structure
When a date or time is retrieved as a string, it is retrieved in the format specified by the database options DATE_FORMAT, TIME_FORMAT and TIMESTAMP_FORMAT.
The following operators are allowed on dates:
Operator  | 
Description  | 
|---|---|
timestamp + integer  | 
Add the specified number of days to a date or timestamp.  | 
timestamp - integer  | 
Subtract the specified number of days from a date or timestamp.  | 
date - date  | 
Compute the number of days between two dates or timestamps.  | 
date + time  | 
Create a timestamp combining the given date and time.  |