saving doc file in sql database

You can create a word document using COM interop library & C#...
Add reference to Microsoft Office 11.0 Object Library using the Add Reference dialog box.

using Microsoft.Office.Core;
using System.Reflection;

public void CreateDoc()
{
 object missing = System.Reflection.Missing.Value;
        object endOfDoc = "\\endofdoc"; /* \endofdoc is a predefined bookmark */
        
        //Start Word and create a new document.  
        Word._Application word = new Word.Application();
        Word._Document document = word.Documents.Add(ref missing, ref missing, ref missing, ref missing);
       
        //Insert a paragraph at the beginning of the document.
        Word.Paragraph para1;
        para1 = document.Content.Paragraphs.Add(ref missing);
        para1.Range.Text = "Adding paragraph thru C#";
        para1.Range.Font.Bold = 1;
        para1.Range.ParagraphFormat.Alignment = Word.WdParagraphAlignment.wdAlignParagraphCenter;
        para1.Format.SpaceAfter = 24;    //24 pt spacing after paragraph.
        para1.Range.InsertParagraphAfter();

word.Visible = true;
       document.Save();
       document.Close(ref missing, ref missing, ref missing);
       word.Quit(ref missing, ref missing, ref missing);
}

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