SELECT * FROM table
WHERE DATE_FORMAT(date_label,'%y') = 1994
Model::find()->where(DATE_FORMAT(date_label,'%y'), 1994);
date_label >= '1994-01-01' and date_label < '1995-01-01'
ModelName::find()->where(['between', 'date_label', '1994-01-01', '1995-01-01' ]);