DO

You can use the DO statement to execute an SQL expression without returning any result.

Syntax:

DO expr [, expr ...]

In some scenarios, the DO statement is equivalent to the SELECT expr statement, which provides a quick response without returning a result. For example:

obclient> SELECT SLEEP(5);
+----------+
| SLEEP(5) |
+----------+
|        0 |
+----------+
1 row in set (5.001 sec)

obclient> DO SLEEP(5);
Query OK, 0 rows affected (5.011 sec)