SECONDSTART scalar function

Returns a TIMESTAMP at the start of AHOUR:AMINUTE:ASECOND on the date AYEAR, AMONTH, ADAY, or at the start of the second of ATIMESTAMP.

Prototypes

SECONDSTART(AYEAR INTEGER, AMONTH INTEGER, ADAY INTEGER, AHOUR INTEGER, AMINUTE INTEGER, ASECOND INTEGER)
SECONDSTART(ATIMESTAMP TIMESTAMP)
SECONDSTART(ATIMESTAMP VARCHAR(26))

RETURNS TIMESTAMP

Description

Returns a TIMESTAMP value representing the first microsecond of ASECOND in AMINUTE in AHOUR on the date given by AYEAR, AMONTH, and ADAY, or of the timestamp given by ATIMESTAMP depending on the variant of the function that is called.

Parameters

AYEAR
If provided, the year component of the resulting timestamp.
AMONTH
If provided, the month component of the resulting timestamp.
ADAY
If provided, the day component of the resulting timestamp.
AHOUR
If provided, the hour component of the resulting timestamp.
AMINUTE
If provided, the minute component of the resulting timestamp.
ASECOND
If provided, the second component of the resulting timestamp.
ATIMESTAMP
If provided, the timestamp from which to derive the start of the second. Either AYEAR, AMONTH, ADAY, AHOUR, AMINUTE, and ASECOND, or ATIMESTAMP must be provided.

Examples

Truncate the specified timestamp to the nearest second:

VALUES SECONDSTART('2010-01-23 04:56:12.123456');

1
--------------------------
2010-01-23-04.56.12.000000

Generate a timestamp at the start of a second with the specified fields:

VALUES SECONDSTART(2010, 2, 14, 9, 30, 44);

1
--------------------------
2010-02-14-09.30.44.000000

See Also