|execute| delete from Users|

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


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

|set parameter|userid|<<zeka|

|Query|Select * from Users where userid=@userid|
|username|name|userid|
|Zeka|Dusko Dugousko|<<zeka|

