Can we pass data-parameter in host

Can we pass a data-parameter to a report using host command in the form.
urgent please
vishal

Your answer is quite correct, but it is stupid behavior - how do you build backwards compatibility into a function if you have to specify the keyword 'default'?
For example, I have an existing function that takes one parameter, but I need to alter it to take two parameters.   I work for a large bank that has a rigorous change management process, and this function resides in the data warehouse, so many
people can use this function in their code, and I need to ensure that any changes I make are backwards compatible, and don't break any existing code that I don't know about.
If this was a stored proc, I could call it without the optional parameter, and the default value would be applied, but a function needs me to specify the keyword 'default' or to provide a value.
My only option seems to be to create a wrapper function that calls either the old function (if only one parameter is provided) or the new function (if both parameters are provided).   Sort of defeats the purpose of having default or optional values.

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