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1. LOCALTIME Function​

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1. LOCALTIME Function​

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The LOCALTIME function in H2 database is used to retrieve the current system time.

2. Syntax​

The syntax for the LOCALTIME function in H2 database is as follows:

LOCALTIME([precision])

Arguments​

  • precision (optional): Specifies the precision of the time value to be returned. It can be one of the following values: 'YEAR', 'MONTH', 'DAY', 'HOUR', 'MINUTE', 'SECOND', 'MILLISECOND'.

Return​

  • The LOCALTIME function returns the current system time as a timestamp.

3. Notes​

  • The LOCALTIME function in H2 database does not require any arguments. If an argument is provided, it specifies the precision of the returned time value.
  • The precision argument is optional. If not specified, the default precision is 'SECOND'.
  • The returned timestamp is in the format 'YYYY-MM-DD HH:mm:ss.SSS'.
  • The LOCALTIME function retrieves the time in the local time zone of the database server.
  • Be aware of the time zone differences when working with databases across different regions.

4. Examples​

Here are a few examples demonstrating the usage of the LOCALTIME function in H2 database:

Example 1 - Retrieving the current system time:​

SELECT LOCALTIME() AS current_time;

Output:

current_time
-------------------
2022-01-01 09:30:45

Example 2 - Retrieving the current system time with different precisions:​

SELECT LOCALTIME('HOUR') AS current_hour,
       LOCALTIME('MINUTE') AS current_minute,
       LOCALTIME('SECOND') AS current_second;

Output:

current_hour | current_minute | current_second
-------------+----------------+----------------
09            | 30             | 45