CREATE TABLE table_64342 ("Class" CLOB, "Railway number ( s ) " CLOB, "Quantity" FLOAT, "Year ( s )  of manufacture" CLOB, "Type" CLOB)

How much Quantity has a Type of 1 c1 h2t?
SELECT COUNT("Quantity") FROM table_64342 WHERE "Type" = '1′c1′ h2t'
SELECT COUNT("Quantity") FROM "table_64342" WHERE "Type" = '1′c1′ h2t'