sql server - Return value from exec(@sql)

Question

I want get the value from Exec(@sql) and assign to @Rowcount(int)

Here is my query:

'SET @RowCount = (select count(*) 
                    FROM dbo.Comm_Services 
                   WHERE CompanyId = '+cast(@CompanyId as char)+' and '+@condition+')'

Answer 1

On the one hand you could use sp_executesql:

exec sp_executesql N'select @rowcount=count(*) from anytable', 
                    N'@rowcount int output', @rowcount output;

On the other hand you could use a temporary table:

declare @result table ([rowcount] int);
insert into @result ([rowcount])
exec (N'select count(*) from anytable');
declare @rowcount int = (select top (1) [rowcount] from @result);