Sweetness and Alcohol Levels

[BostonGirl]

Hello -
I am trying to learn how to pick a wine from reading the labels (I like Reislings) and I know I read somewhere that the sweetness of the wine depends on the alcohol level. Is that right? But what I can't remember is if it said the higher the alcohol level, the sweeter the wine or vice versa. Can someone help me, please? Thank you!