Deflating GDP using OECD data I would like to know how to find a Euro zone country real quarterly gdp growth, using the OECD database. 

We have Quarterly GDP, and CPI. 
How should I proceed?

If it's not possible, which database can I use to obtain it?

Any help would be appreciated.
That Quarterly GDP chart looks as if it is already the percentage change in real GDP (for example put "Time" on "Annual" and note that the effects of the 1973 and 1979 oil price shocks are negative rather than positive)