Reuse t-sql table variable or clone its structure - sql-server

Question

I'm writing stored procedure to paginate results of a different stored procedure. I do it by executing the stored procedure and inserting results into the table variable:
DECLARE #allResults table
(
[ID] [int] NOT NULL,
[DESCRIPTION] [varchar](MAX) NULL,
[COL1] [VARCHAR],
[COL2] [VARCHAR],
...
);
INSERT #allResults Exec [dbo].[GetResults];
I need to filter the results and store them somewhere because I will use filtered results in at least two places: to count all the records and to actually paginate. Ideally I'd like to reuse the #allResults table as I won't need its content anymore after filtering. Something similar to:
#allresults = #allresults where [DESCRIPTION] like '%keyword%'
I'm not exactly sure how can I truncate table in the same moment as I filter it. That's why I created second table variable with the same structure:
DECLARE #filteredResults table
(
[ID] [int] NOT NULL,
[DESCRIPTION] [varchar](MAX) NULL,
[COL1] [VARCHAR],
[COL2] [VARCHAR],
...
);
It's not a bad solution, and it works. But I wonder could I reuse the definition of a table variable? Something that would look like:
DECLARE #filteredResults, #allResults table
(
[ID] [int] NOT NULL,
[DESCRIPTION] [varchar](MAX) NULL,
[COL1] [VARCHAR],
[COL2] [VARCHAR],
...
);
Is there a way to do it? Maybe there's a way to clone table variable? I guess simultaneous delete and filtering could be achieved using delete with output clause but I'm not exactly sure how should I write it.
I hate to repeat code. Maybe there's a simple solution you know of :)

Answer 1

You can create your own user table type:
CREATE TYPE dbo._t_test AS TABLE(
[ID] [int] NOT NULL,
[DESCRIPTION] [varchar](MAX) NULL,
[COL1] [VARCHAR],
[COL2] [VARCHAR]
)
GO
And then create table variables like this:
DECLARE #filteredResults dbo._t_test
, #allResults dbo._t_test