Help Center/Data Lake Insight/Spark SQL Syntax Reference/Built-In Functions/Date Functions/second
Updated on 2023-10-25 GMT+08:00
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second

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

Syntax

second(string date)

Parameters

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

Return Values

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.

Example Code

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);
Parent topic:Date Functions