Syntax

UUID_TO_BIN(string_uuid, swap_time)

Arguments

string_uuid: A string UUID value.

swap_time: A flag value that can be 0 or 1.

Return Type

VARBINARY(16)

Remarks

• If the argument is an invalid UUID value, it returns SQL NULL.

• UUID_TO_BIN can take one or two arguments.

  • If swap_time is 0, UUID_TO_BIN is a one-argument function that returns the binary format in the same order as the string value.

  • If swap_time is 1, UUID_TO_BIN is a two-argument function that returns the binary format in different order as the string value. It swaps the time-low(first) and time-high(third) groups of hexadecimal characters.

Examples

Converts the UUID in binary format and returns the binary format in hexadecimal format.

SELECT HEX(UUID_TO_BIN('d93f9a83-e032-4e25-80a6-d67235e68399'))
AS result;

+----------------------------------+
| result                           |
+----------------------------------+
| D93F9A83E0324E2580A6D67235E68399 |
+----------------------------------+

Converts the UUID to binary format and returns it in hexadecimal format after swapping the time part.

SELECT HEX(UUID_TO_BIN('d93f9a83-e032-4e25-80a6-d67235e68399', 1))
AS result;

+-----------------------------------+
| result                            |
+-----------------------------------+
| 4E25E032D93F9A8380A6D67235E683999 |
+-----------------------------------+