mysql> select @@GLOBAL.sql_mode;
+--------------------------------------------+
| @@GLOBAL.sql_mode                          |
+--------------------------------------------+
| STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION |
+--------------------------------------------+
1 row in set (0.00 sec)

mysql> SET @@GLOBAL.sql_mode=''
    -> ;
Query OK, 0 rows affected (0.00 sec)