Assertions for via Store Proc Execution

hi All i want to Validate a response values which i have parsed and stored in a variable.

In a separate method I want to return the values executed by a stored proc. 

How does one execute a store proc in groovy

is this correct

public def getSPvalues(def database,def cid, def eid)
{
def query ="exec <ProcName>@ViewedCompanyId= '$cid', @ViewedEmployeeId='$eid', 0, 1, 1 "

return query
}

Note: using the free version of soap ui

Can Anyone help with correct syntax?