Syntax error near coalesce

Thanks for help.
cmd.CommandText = "update dbo.User_Info SET COALESCE(@FirstName, FirstName),COALESCE(@LastName,LastName),COALESCE(@Degree,Degree),COALESCE(@Organization,Organization),COALESCE(@Phone,Phone),COALESCE(@Ext,Ext) where UserName =@username";
            cmd.Parameters.Add("FirstName", SqlDbType.VarChar).Value = TextFirstName.Text;
            cmd.Parameters.Add("LastName", SqlDbType.VarChar).Value = TextLastName.Text;
            cmd.Parameters.Add("Degree", SqlDbType.VarChar).Value = TextDegree.Text;
            cmd.Parameters.Add("Organization", SqlDbType.VarChar).Value = TextOrg.Text;
            cmd.Parameters.Add("Phone", SqlDbType.VarChar).Value = TextPhone.Text;
            cmd.Parameters.Add("Ext", SqlDbType.VarChar).Value = TextExt.Text; 

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You don't have the value that you are trying to set in your query.

update dbo.User_Info SET
   FirstName = COALESCE(@FirstName, FirstName),
   LastName = COALESCE(@LastName,LastName),
   Degree = COALESCE(@Degree,Degree),
   Organization = COALESCE(@Organization,Organization),
   Phone = COALESCE(@Phone,Phone),
   Ext = COALESCE(@Ext,Ext)
where UserName =@username
Jim HornSQL Server Data DudeCommented:
update dbo.User_Info  SET
  {You need a column name here to set to } = COALESCE(@FirstName, FirstName),
  {You need another column name here to set to } = COALESCE(@LastName,LastName),
Guy Hengel [angelIII / a3]Billing EngineerCommented:
update yourtable set somefield = coalesce(...)

you are missing to indicate the field(s) you want to update  ...

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Microsoft SQL Server 2008

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