Dates and times may be retrieved from the database in one of the following ways:
Using any interface, as a string
Using ODBC, as a TIMESTAMP structure
Using embedded SQL, as a SQLDATETIME structure
Date and times with time zone offsets may be retrieved from the database as a string only.
When a date or time, with or without a time zone offset, is retrieved as a string, it is retrieved in the format specified by the database options date_format, time_format, timestamp_format, and timestamp_with_time_zone_format. For descriptions of these options, see SET OPTION statement.
For information about functions that deal with dates and times, see Date and time functions. The following arithmetic operators are allowed on dates:
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.
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