CREATE TABLE table_2289 ("Type" TEXT, "Beam height  ( mm ) " FLOAT, "Flange width  ( mm ) " FLOAT, "Web thickness  ( mm ) " TEXT, "Flange thickness  ( mm ) " TEXT, "Weight  ( kg/m ) " TEXT, "Cross-section area  ( cm 2  ) " TEXT, "Moment of inertia in torsion  ( J )   ( cm 4  ) " TEXT)

What is the flange thickness when the weight is 19.9?
SELECT "Flange thickness (mm)" FROM table_2289 WHERE "Weight (kg/m)" = '19.9'
SELECT "Flange thickness (mm)" FROM "table_2289" WHERE "Weight (kg/m)" = '19.9'