One line of code using jQuery which hides the 2nd column:
$('td:nth-child(2)').hide();
If your table has header(th), use this:
$('td:nth-child(2),th:nth-child(2)').hide();
Source: Hide a Table Column with a Single line of jQuery code
jsFiddle to test the code: http://jsfiddle.net/mgMem/1/
If you want to see a good use case, take a look at my blog post:
Hide a table column and colorize rows based on value with jQuery.