SYSDATE Function:- SYSDATE Function is used to return the current server date and time. The format of the date and time will be “YYYY-MM-DD HH:MM: SS” (string) or as YYYYMMDDHHMMSS (numeric).
Syntax:- SYSDATE()
Example:-
SELECT SYSDATE();
Output:- 2023-02-14 10:16:56
TIME Function:- TIME Function is used for extracting the time part from a given date or date and time expression.
Syntax:- TIME(expression)
Example:-
SELECT TIME(“2023-02-14 13:50:30”);
Output:- 13:50:30
TIME_FORMAT Function:- TIME_FORMAT Function is used for formatting the time in a specific format from a given date and time.
Syntax:- TIME_FORMAT(time, format)
The following format will be used either single or combination:-
%f For Microseconds (000000 to 999999)
%H For Hour (00 to 23)
%h For Hour (00 to 12)
%I For Hour (00 to 12)
%i For Minutes (00 to 59)
%p For AM or PM
%r For Time in 12 hour AM or PM format (hh:mm:ss AM/PM)
%S For Seconds (00 to 59)
%s For Seconds (00 to 59)
%T For Time in 24 hour format (hh:mm:ss)
Example:- SELECT TIME_FORMAT(“15:57:40”, “%h %i %s %p”);
Output:- 03 57 40 PM
TIME_TO_SEC Function:- TIME_TO_SEC Function is used for converting time value into seconds.
Syntax:- TIME_TO_SEC(time value)
Example:-
SELECT TIME_TO_SEC(“14:41:37”);
Output:- 52897
TIMEDIFF Function:- TIMEDIFF Function is used for the difference between the Same format at two different times.
Syntax:- TIMEDIFF(time1, time2)
Example:-
SELECT TIMEDIFF(“14:44:34”, “12:50:19”);
Output:-
01:54:15
TIMESTAMP Function:- TIMESTAMP Function is used for returning the date-time value from a given date-time value. For a single argument, it returns the date or datetime expression and in the case of two arguments, It returns the sum of two argument date or datetime expression.
Syntax:- TIMESTAMP(expression) or TIMESTAMP(expression1, expression2)
Example:-
SELECT TIMESTAMP(“2023-02-15”, “14:53:42”);
Output:- 2023-02-15 14:53:42
SELECT TIMESTAMP(“2023-02-15”);
Output:- 2023-02-15 00:00:00