Selecting part of text from sql database in asp.net

I have a nvarchar field in sql database .. for example I have 4000 character in this field but I want to select only 200 first character开发者_JS百科 and display in a label .

how can I do this ?

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In the underlying query:

 SELECT 
   LEFT(fld, 200) 
 FROM T ...

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Select Left(YourColumn, 200) as 'First200'
From dbo.YourTable

Or

Select SubString(YourColumn, 1, 200) as 'First200'
From dbo.YourTable

Information on Left and Substring