Yesterday, A Technology Song

Yesterday,
All those backups seemed a waste of pay.
Now my database has gone away.
Oh I believe in yesterday.

Suddenly,
There's not half the files there used to be.
An there's a millstone hanging over me.
The system crashed so suddenly.

I pushed something wrong.
What it was, I could not say.
Now all my data's gone and I long for yesterday-ay-ay-ay.