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LENGTH

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Returns the byte length of a given string, array, or binary object.

Syntax

LENGTH (expr)

Arguments

  • expr: any string, array, or binary object

Return Type

Integer

Examples

Example 1

SELECT CHARACTER_LENGTH('olé'), LENGTH('olé');
+--------------------------+----------------+
| CHARACTER_LENGTH('olé')  | LENGTH('olé')  |
+--------------------------+----------------+
|                        3 |              4 |
+--------------------------+----------------+

The CHARACTER_LENGTH function returns the number of characters in the string, while the LENGTH() function returns the number of bytes in the string.

Example 2

DELIMITER //
CREATE OR REPLACE FUNCTION get_length() RETURNS INT AS
  DECLARE
    a ARRAY(VARCHAR(30));
  BEGIN
    a = ['SAM','JOE','TRUDY'];
    RETURN LENGTH(a);
  END //
DELIMITER ;


SELECT get_length() AS "LENGTH";
+--------+
| LENGTH |
+--------+
|      3 |
+--------+

Last modified: February 27, 2023

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Verification instructions

Note: You must install cosign to verify the authenticity of the SingleStore file.

Use the following steps to verify the authenticity of singlestoredb-server, singlestoredb-toolbox, singlestoredb-studio, and singlestore-client SingleStore files that have been downloaded.

You may perform the following steps on any computer that can run cosign, such as the main deployment host of the cluster.

  1. (Optional) Run the following command to view the associated signature files.

    curl undefined

  2. Download the signature file from the SingleStore release server.

    • Option 1: Click the Download Signature button next to the SingleStore file.

    • Option 2: Copy and paste the following URL into the address bar of your browser and save the signature file.

    • Option 3: Run the following command to download the signature file.

      curl -O undefined

  3. After the signature file has been downloaded, run the following command to verify the authenticity of the SingleStore file.

    echo -n undefined |
        cosign verify-blob --certificate-oidc-issuer https://oidc.eks.us-east-1.amazonaws.com/id/CCDCDBA1379A5596AB5B2E46DCA385BC \
          --certificate-identity https://kubernetes.io/namespaces/freya-production/serviceaccounts/job-worker \
          --bundle undefined \
          --new-bundle-format -
    Verified OK