Host-resident requests can contain up to 50 variables with names of any length. In passthrough mode, an ampersand (&) precedes each variable. In sybase mode, an @ (at) symbol precedes each variable. Variables are specified as follows in passthrough and sybase mode:
passthrough mode:
&var1=value1 &var2=value2 ...
sybase mode:
@var1=value1, @var2=value2
