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1. RTRIM Function​

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rtrim

1. RTRIM Function​

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The RTRIM function in H2 database is used to remove trailing spaces from a string.

2. Syntax​

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

RTRIM(string)

Argument​

  • string: The string from which trailing spaces need to be removed.

Return​

  • The RTRIM function returns the input string with trailing spaces removed.

3. Notes​

  • The RTRIM function in H2 database only removes trailing spaces and does not affect leading or inner spaces within the string.
  • If the input string is NULL, the RTRIM function will return NULL.

4. Examples​

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

Example 1 - Removing trailing spaces from a string:​

SELECT RTRIM('Hello     ') AS trimmed_string;

Output:

trimmed_string
--------------
Hello

Example 2 - Removing trailing spaces from a column:​

CREATE TABLE names (
  id INT PRIMARY KEY,
  name VARCHAR(50)
);

INSERT INTO names VALUES (1, 'John     '), (2, 'Alice   '), (3, 'Bob');

SELECT id, RTRIM(name) AS trimmed_name
FROM names;

Output:

id | trimmed_name
---+--------------
1  | John
2  | Alice
3  | Bob
  • ltrim - Remove leading spaces from a string
  • trim - Remove leading and trailing spaces from a string