Mysql> SELECT := AS old_uuid_bin, AS len SELECT BINTOUUID (uuid) AS uuid FROM mytable Note: BINTOUUID is only supported in MySQL 8+. Mysql> SET OK, 0 rows affected (0.00 sec) mysql> SELECT UUID() -> 6ccd780c-baba-1026-9564-5b8c656024db This function is unsafe for statement-based replication. If your version of MySQL does not support the function, you can use UNHEX: SELECT FROM mytable WHERE uuid UNHEX (REPLACE 77dea2ad-3c8c-40c6-a278-7cf1a1ac9384. BIN_TO_UUID() as shown in the output below solves this problem. There was however no easy to unencode a BINARY(16) into the original value. MySQL has a UUID() function, which makes MySQL generate a UUID value and return it in a human-readable form, of type VARCHAR(36). 12 Context Web application, PHP 5, MySQL 5.0.91 The Problem I recently switched from using an auto-incremented integer to a UUID as a primary key for some of my tables.
Historically, to encode a UUID into a BINARY(16) datatype was to use UNHEX(REPLACE()) syntax. The following script shows the usage and checks of these new functions.
#Mysql uuid functions install
If you want a minimal install Giuseppe Maxia provides docker minimal images of 5.0+ versions including 8.0.0.Ī running docker container with MySQL 8.0 is as easy as: Thanks to the great work and hosting by Marcus Popp anybody can test out the SQL syntax of MySQL 8.0.0 using db4free without installing anything. MySQL 8.0.0 introduces three new miscellaneous UUID functions of IS_UUID(), UUID_TO_BIN() and BIN_TO_UUID() joining the UUID() (in 5.0) and UUID_SHORT() (in 5.1) functions.
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