Need help converting t-sql functions 'convert()' and 'cast()' to work in SWQL

I have a report query ins T-SQL and I need to use in SWQL:

Part of the query presenting error:

Select convert(varchar, r.Event_Time, 120) Event_Time, r.AccessPoint, CAST(r.Clients as int) Clients  

Error:

Select convert(varchar, r.Event_Time, 120) Event_Time, r.AccessPoint, CAST(r.Clients as int) Clients 

        From ( ...

QUESTION:
Are there any SWQL statement equivalent to the T-SQL below ?

convert(varchar, r.Event_Time, 120) Event_Time, r.AccessPoint, CAST(r.Clients as int) Clients  

Thanks