BLOB

String for variable-length binary data up to 65,535 bytes

See also: Data Types in 10.6 CS, in 10.5 ES, in 10.5 CS, in 10.4 ES, in 10.4 CS, in 10.3 ES, in 10.3 CS, in 10.2 ES, and in 10.2 CS

EXAMPLES

BLOB

Example of BLOB:

CREATE TABLE blob_example (
  description VARCHAR(20),
  example BLOB
);
INSERT INTO blob_example VALUES
  ('Normal foo', 'foo'),
  ('Trailing spaces foo', 'foo      '),
  ('NULLed', NULL),
  ('Empty', ''),
  ('Maximum', RPAD('', 65535, CHAR(7)));
SELECT description, LENGTH(example) AS length
  FROM blob_example;
+---------------------+--------+
| description         | length |
+---------------------+--------+
| Normal foo          |      3 |
| Trailing spaces foo |      9 |
| NULLed              |   NULL |
| Empty               |      0 |
| Maximum             |  65535 |
+---------------------+--------+

Data too long

When SQL_MODE is strict (default) a value is considered "too long" when its length exceeds the size of the data type, and an error is generated.

Example of data too long behavior for BLOB:

INSERT INTO blob_example VALUES
  ('Overflow', RPAD('', 65536, CHAR(7)));
ERROR 1406 (22001): Data too long for column 'example' at row 1

CHANGE HISTORY

Release Series

History

10.6 Community

  • Present starting in MariaDB Community Server 10.6.0.

10.5 Enterprise

  • Present starting in MariaDB Enterprise Server 10.5.3-1.

10.5 Community

  • Present starting in MariaDB Community Server 10.5.0.

10.4 Enterprise

  • Present starting in MariaDB Enterprise Server 10.4.6-1.

10.4 Community

  • Present starting in MariaDB Community Server 10.4.0.

10.3 Enterprise

  • Present starting in MariaDB Enterprise Server 10.3.16-1.

10.3 Community

  • Present starting in MariaDB Community Server 10.3.0.

10.2 Enterprise

  • Present starting in MariaDB Enterprise Server 10.2.25-1.

10.2 Community

  • Present starting in MariaDB Community Server 10.2.0.

EXTERNAL REFERENCES