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1. CURRENT_TIMESTAMP Function​

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current_timestamp

1. CURRENT_TIMESTAMP Function​

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The CURRENT_TIMESTAMP function in H2 database is used to retrieve the current date and time.

2. Syntax​

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

CURRENT_TIMESTAMP

Arguments​

  • None

Return​

  • The CURRENT_TIMESTAMP function returns the current date and time as a TIMESTAMP value.

3. Notes​

  • The CURRENT_TIMESTAMP function does not accept any arguments.
  • The returned value is in the TIMESTAMP format, which includes both the date and the time.
  • The current date and time are based on the system clock of the database server.

4. Examples​

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

Example 1 - Retrieving the current timestamp:​

SELECT CURRENT_TIMESTAMP AS current_time;

Output:

current_time
--------------------
2022-01-01 10:30:45

Example 2 - Using the current timestamp in queries:​

CREATE TABLE events (
  id INT PRIMARY KEY,
  event_name VARCHAR(100),
  event_date TIMESTAMP
);

INSERT INTO events VALUES (1, 'Event 1', CURRENT_TIMESTAMP);
INSERT INTO events VALUES (2, 'Event 2', CURRENT_TIMESTAMP);
INSERT INTO events VALUES (3, 'Event 3', CURRENT_TIMESTAMP);

SELECT * FROM events;

Output:

id | event_name |        event_date
---+------------+------------------------
1  | Event 1    | 2022-01-01 10:30:45.123
2  | Event 2    | 2022-01-01 10:30:45.123
3  | Event 3    | 2022-01-01 10:30:45.123