Formule
(( ROUND((CHAR_LENGTH(b.article_nom)-CHAR_LENGTH(REPLACE(b.article_nom, 'fertiliser', '')))/LENGTH('fertiliser')) + ROUND((CHAR_LENGTH(b.article_description)-CHAR_LENGTH(REPLACE(b.article_description, 'fertiliser', '')))/LENGTH('fertiliser')) ) * 4) + (( ROUND((CHAR_LENGTH(b.article_nom)-CHAR_LENGTH(REPLACE(b.article_nom, 'bonsai', '')))/LENGTH('bonsai')) + ROUND((CHAR_LENGTH(b.article_description)-CHAR_LENGTH(REPLACE(b.article_description, 'bonsai', '')))/LENGTH('bonsai')) ) * 3.6) + (( ROUND((CHAR_LENGTH(b.article_nom)-CHAR_LENGTH(REPLACE(b.article_nom, 'flowering', '')))/LENGTH('flowering')) + ROUND((CHAR_LENGTH(b.article_description)-CHAR_LENGTH(REPLACE(b.article_description, 'flowering', '')))/LENGTH('flowering')) ) * 2.9) + (( ROUND((CHAR_LENGTH(b.article_nom)-CHAR_LENGTH(REPLACE(b.article_nom, 'water', '')))/LENGTH('water')) + ROUND((CHAR_LENGTH(b.article_description)-CHAR_LENGTH(REPLACE(b.article_description, 'water', '')))/LENGTH('water')) ) * 2.5) + (( ROUND((CHAR_LENGTH(b.article_nom)-CHAR_LENGTH(REPLACE(b.article_nom, 'trees', '')))/LENGTH('trees')) + ROUND((CHAR_LENGTH(b.article_description)-CHAR_LENGTH(REPLACE(b.article_description, 'trees', '')))/LENGTH('trees')) ) * 2.5) + (( ROUND((CHAR_LENGTH(b.article_nom)-CHAR_LENGTH(REPLACE(b.article_nom, 'phosphorus', '')))/LENGTH('phosphorus')) + ROUND((CHAR_LENGTH(b.article_description)-CHAR_LENGTH(REPLACE(b.article_description, 'phosphorus', '')))/LENGTH('phosphorus')) ) * 2) + (( ROUND((CHAR_LENGTH(b.article_nom)-CHAR_LENGTH(REPLACE(b.article_nom, 'potassium', '')))/LENGTH('potassium')) + ROUND((CHAR_LENGTH(b.article_description)-CHAR_LENGTH(REPLACE(b.article_description, 'potassium', '')))/LENGTH('potassium')) ) * 1.9) + (( ROUND((CHAR_LENGTH(b.article_nom)-CHAR_LENGTH(REPLACE(b.article_nom, 'chemical', '')))/LENGTH('chemical')) + ROUND((CHAR_LENGTH(b.article_description)-CHAR_LENGTH(REPLACE(b.article_description, 'chemical', '')))/LENGTH('chemical')) ) * 1.8) + (( ROUND((CHAR_LENGTH(b.article_nom)-CHAR_LENGTH(REPLACE(b.article_nom, 'solution', '')))/LENGTH('solution')) + ROUND((CHAR_LENGTH(b.article_description)-CHAR_LENGTH(REPLACE(b.article_description, 'solution', '')))/LENGTH('solution')) ) * 1.8) + (( ROUND((CHAR_LENGTH(b.article_nom)-CHAR_LENGTH(REPLACE(b.article_nom, 'nitrogen', '')))/LENGTH('nitrogen')) + ROUND((CHAR_LENGTH(b.article_description)-CHAR_LENGTH(REPLACE(b.article_description, 'nitrogen', '')))/LENGTH('nitrogen')) ) * 1.8)