Some considerations on yii2

Some considerations on yii2:

it important to have installed composer to be able to install yii2 from a file?.

I do not have installed composer.

When I install yii2 from the basic file, that is, I decompress it and I do him the changes in config/db it is not executed.

I need to learn how to utilize yii2, since all my experience has been with yii1 to the version 1,1,17, where you have elaborated some systems with no difficulty.

No but it’s not convenient.

The issue seems to be solved in another topic, right?