Seeking Sqlite no-op command

Question

Is there a command which I can run to do nothing (or very little) which will never error? I need something for testing porpoises.

Accepted Answer

A comment does nothing (but your database driver might complain if there is not command at all):

```
/* Hello, world! */
```

Unknown PRAGMA statements are ignored, and do not return anything:

```
PRAGMA testing_porpoises;
```

If you need a statement that returns an empty result set, you need a SELECT:

```
SELECT 0 WHERE 0;
```

Solution