No you cannot live without your spine.
Your spine not only allows you to stand up and holds your body together your spine also has nerves running down it that control movement as well as your bladder etc.
In some cases if a spine gets severed enough it can lead to death.
You must have your spine to live and without the spine you would not be able to move around or stand up even if you could live without it.
Even if it were possible to live without your spine you would basically be a vegetable unable to move around.
Damage to the spine can lead to bladder issues, urinary incontinence, bowel incontinence and even paralyzing of your body.
In some cases the spine injury can lead to death.
Your spine is a very important part of your body.