This function is used to return the second (from 0 to 59) of a specified time.

second(string date)

**Table 1** Parameter
Parameter	Mandatory	Type	Description
date	Yes	DATE or STRING	Date that needs to be processed The following formats are supported: yyyy-mm-dd yyyy-mm-dd hh:mi:ss yyyy-mm-dd hh:mi:ss.ff3

The return value is of the INT type.

If the value of date is not of the DATE or STRING type, the error message "data type mismatch" is displayed.
If the value of date is of the DATE or STRING type but is not in one of the supported formats, NULL is returned.
If the value of date is NULL, NULL is returned.

The value 36 is returned.

select second('2023-08-16 10:54:36');

The value 36 is returned.

select second('10:54:36');

The value NULL is returned.

 select second('20230816105436');

The value NULL is returned.

select second(null);