You can store a UUID safely as a “Binary 16”, instead of a “Varchar 36”.
If you still require a human-readable column, its possible to use a “generated” column (from MySQL 5.7 and up):
additional info for MySQL 8.0 – https://mysqlserverteam.com/mysql-8-0-uuid-support/
On the commandline the elements of PATH are checked from left to right.
an example (PATH)
test-my-command-precedence.sh which exists in
for the following path
/usr/bin/test-my-command-precedence.sh gets precedence.