One presumes you mean something like:
```
update selectRandom
set lastUsed = now,
lastUsedIdx = (
select max(max(lastUsedIdx), 0) + 1
from selectRandom
where lastUsed == now
)
from (
select date('now', 'localtime') as now
)
where description == :teaToBrew;
```
which would eliminate having to write and execute the date function twice, any concern about the values being different during a single step being already irrelevant.