如何将大于NVARCHAR（MAX）的字符串保存到本地T-SQL变量中？

Question

I have a very huge results that needs to be provided as an HTML.

This is the query:

DECLARE @N_Data NVARCHAR(MAX) = ''
SET @N_Data = 
            (SELECT 
                '<td>' + N_code + '</td>'
                + '<td>' + N_Title + '</td>'
                + '<td>' + N_Description + '</td>'
            FROM NTable             
            ORDER BY N_code                 
            FOR XML PATH('tr'))
SELECT @N_Data

I know this is not the best way of getting the data. Let's say that I am in certain circumstances that limit my options in just using this method.

So, when I check the results, it doesn't display everything because the result string is greater than NVARCHAR(MAX)

I know that using TEXT and NTEXT datatypes is not allowed with local variables.

Any idea how to solve this?

Answer 1

nvarchar(max) aside, the string concatination caught my eye.

Perhaps another approach

Example

Declare @YourTable table (ID int,N_Code varchar(25),N_Title varchar(50),N_Description varchar(50))
Insert Into @YourTable values
(1,'ABC','Title For ABC','Description for ABC and some additional text'),
(1,'123','Title For 123','Description for 123 and more text')

Declare @N_Data nvarchar(max) = (
Select  td=N_Code
       ,null
       ,td=N_Title
       ,null
       ,td=N_Description
 From @YourTable
 Order By N_Code
 For XML Path('tr')
)

Select @N_Data

Returns

<tr>
  <td>123</td>
  <td>Title For 123</td>
  <td>Description for 123 and more text</td>
</tr>
<tr>
  <td>ABC</td>
  <td>Title For ABC</td>
  <td>Description for ABC and some additional text</td>
</tr>