On MariaDB, what grants are needed for set session variables?
For set global are the SUPER grants. But can any client without SUPER grants set his own session variables?
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Sign up to join this communityYes, this appears to be the case - you don't need any particular GRANT
in order to modify your own session variables:
CREATE USER user1@localhost IDENTIFIED BY 'Password_123!';
SHOW GRANTS FOR user1@localhost;
+--------------------------------------------------------------------------------------------------------------+
| Grants for user1@localhost |
+--------------------------------------------------------------------------------------------------------------+
| GRANT USAGE ON *.* TO 'user1'@'localhost' IDENTIFIED BY PASSWORD '*45C046113DAFA331183C338569DC015C53EE4B47' |
+--------------------------------------------------------------------------------------------------------------+
1 row in set (0.05 sec)
Then:
# mysql -u user1 -p'Password_123!'
SHOW VARIABLES LIKE 'sql_mode';
+---------------+--------------------------------------------+
| Variable_name | Value |
+---------------+--------------------------------------------+
| sql_mode | NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION |
+---------------+--------------------------------------------+
1 row in set (0.03 sec)
SET sql_mode='';
SHOW VARIABLES LIKE 'sql_mode';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| sql_mode | |
+---------------+-------+
1 row in set (0.01 sec)
Note that of course not all system variables can be modified per session, and some are not even dynamic.