TINYTEXT
Contents
Syntax
TINYTEXT [CHARACTER SET charset_name] [COLLATE collation_name]
Description
A TEXT column with a maximum length of 255 (28 - 1
) characters. The effective maximum length is less if the value contains multi-byte characters. Each TINYTEXT value is stored using a one-byte length prefix that indicates the number of bytes in the value.
EXAMPLES
TINYTEXT
Example of TINYTEXT:
CREATE TABLE tinytext_example ( description VARCHAR(20), example TINYTEXT ) DEFAULT CHARSET=latin1; -- One byte per char makes the examples clearer
INSERT INTO tinytext_example VALUES ('Normal foo', 'foo'), ('Trailing spaces foo', 'foo '), ('NULLed', NULL), ('Empty', ''), ('Maximum', RPAD('', 255, 'x'));
SELECT description, LENGTH(example) AS length FROM tinytext_example;
+---------------------+--------+ | description | length | +---------------------+--------+ | Normal foo | 3 | | Trailing spaces foo | 9 | | NULLed | NULL | | Empty | 0 | | Maximum | 255 | +---------------------+--------+
Data Too Long
When SQL_MODE is strict (the 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 TINYTEXT:
TRUNCATE tinytext_example; INSERT INTO tinytext_example VALUES ('Overflow', RPAD('', 256, 'x'));
ERROR 1406 (22001): Data too long for column 'example' at row 1
See Also
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