information_schema.columns.character_octet_length

Note:

Same as the CHARACTER_MAXIMUM_LENGTH except for multi-byte character sets.

Note:

For string columns, the maximum length in bytes.

Note:

If data_type identifies a character type, the maximum possible length in octets (bytes) of a datum; null for all other data types. The maximum octet length depends on the declared character maximum length (see above) and the server encoding.

Note:

If data_type identifies a character type, the maximum possible length in octets (bytes) of a datum; null for all other data types. The maximum octet length depends on the declared character maximum length (see above) and the server encoding.

Note:

If data_type is STRING, the maximum length in octets (bytes) of a value; otherwise NULL.

Note:

If DATA_TYPE is STRING, the maximum length in octets (bytes) of a value; otherwise NULL.

Note:

Maximum length, in bytes, for binary data, character data, or text and image data. -1 for xml and large-value type data. Otherwise, NULL is returned.