Where is my old data after installing 1.2

hi
i installed 1.2. the piwik statistics works when i visit my website, but all the old data is gone. it seems that piwik hasnt imported my original vistiors.

during installation i hade to create a new mysql database, so i was wondering if piwik automatically copied the old one.

what did i wrong?
thanks for helping

i get it now.

i allready noticed that i did the manual installation. so i had to copy the old config file to the new file.

It seems you haven’t followed the Update instructions: Update Piwik - Analytics Platform - Matomo

It is very simple but important to follow all steps. you should be able to just upgrade your 1.1 database