使用带有动态参数的过程选择INTO动态温度表

Question

I can't find a full solution to my problem. I have an existing stored procedure that takes dynamic input as a parameter value. I need to execute this procedure (with a dynamic variable) and would like to somehow SELECT * INTO #mytable without having to declare the schema of the temp table.

I've tried using OPENROWSET but it doesn't allow me to specify the variable (only hard-code it):

select * into #table from openrowset('SQLNCLI', 'Server=localhost;Trusted_Connection=yes;', 'exec SERVER..MYSTOREDPROCEDURE @parameter = 123')

The only other way I'm aware of is wrapping it in a string and using EXEC(@sql), but I can't figure out how to "SELECT * INTO #table" from that.

What are my options? Can I create a UDF table function that can return a dynamic table? Doubtful...

Answer 1

I'm guessing here, but you'll need to do the whole thing in dynamic SQL. So, instead, something like:

DECLARE @SQL nvarchar(MAX);
DECLARE @param nvarchar(10) = 123;
SET @SQL = N'SELECT *' + NCHAR(10) +
           N'INTO #table' + NCHAR(10) +
           N'FROM OPENROWSET(''SQLNCLI'', ''Server=localhost;Trusted_Connection=yes;'', ''exec SERVER..MYSTOREDPROCEDURE @parameter = ' + QUOTENAME(@param,N'''') +N''');' + NCHAR(10) +
           N'SELECT *' + NCHAR(10) + --Of course, I assume you're doing something more complex that a SELECT *.
           N'FROM #table;';
PRINT @SQL;
EXEC sp_executesql @SQL;

Answer 2

I think I figured it out. I really only had to modify the temp variable names to put the temp table into the global scope. This works for me with my actual tables (I renamed them for the purposes of this post).

IF OBJECT_ID ('tempdb..##mytemptable') is not null drop table ##mytemptable

declare @id int = 112

declare @sql nvarchar(max) ='SELECT * INTO ##mytemptable FROM OPENROWSET(''SQLNCLI'', ''Server=localhost;Trusted_Connection=yes;'', ''exec SERVER..MyStoredProcedure @ID =' + convert(varchar(10), id) + ''')'

-- invokes and inserts into ##mytemptable
exec sp_executesql @sql

-- now I can query from the global scope
select * from ##mytemptable