!3 Use ? to mark columns that should return values

!|Insert|users|
|username|name|userid?|
|pera|Petar Detlic|>>pera|
|Mika|Mitar Miric|>>mika|
|Zeka|Dusko Dugousko|>>zeka|
|DevNull|null|>>nll|

!3 Confirm that IDs are the same as in the database

!|Ordered Query|Select * from users|
|username|name|userid|
|pera|Petar Detlic|<<pera|
|Mika|Mitar Miric|<<mika|
|Zeka|Dusko Dugousko|<<zeka|
|DevNull|null|<<nll|

!3 Stored values can be used in queries directly

|Query|Select * from users where userid=_:zeka|
|username|name|userid|
|Zeka|Dusko Dugousko|<<zeka|
