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DECLARE @sql nvarchar(max) = N'SELECT database_id, name FROM sys.databases;';

SELECT name,
system_type_name,
is_nullable
FROM sys.dm_exec_describe_first_result_set(@sql, NULL, 0) AS f
ORDER BY f.column_ordinal;
name system_type_name is_nullable
database_id int False
name nvarchar(128) True