anchor.diff:  				{
   					try{
   						Class.forName("org.postgresql.Driver");
  +						conn.setAutoCommit(false);
   						sql =	"UPDATE products SET (name, sku, img_url, description, price) = " +
   								"(?,?,?,?,?) WHERE product_id = ?";
   						d_pstmt = conn.prepareStatement(sql);
  
positive.code: 							<input value="<%=rssku %>" id="sku" name="sku" type="text" placeholder="SKU" class="form-control">
  							
  							<label class="control-label" for="img_url">Category</label>
  							<select class="form-control" name="category">
  								<% 
  								
  								try{	
  									sql = "SELECT name FROM categories";
  									d_statement = conn.createStatement();
  									d_rs = statement.executeQuery(sql);
  									ArrayList<String> categories;
  									while(d_rs.next())
  									{
  										String c = rs.getString("name");
  										String selected = (c.equals(rscategory)) ? "selected":""; %>
  										<option <%=selected%> value="<%=c %>"><%=c %></option>
  								<% }
  									d_statement.close();
  									conn.close();
  
negative.code: 									while(rs.next())
  									{
  										String c = rs.getString("name");
  										String old_id = rs.getString("category_id");
  										String selected = (c.equals(old_id)) ? "selected":""; %>
  										<option <%=selected%> value="<%=old_id %>"><%=c %></option>
  								<% }
  									statement.close();
  									rs.close();
  