CREATE TABLE table_62076 ("Dam constructed" CLOB, "Year completed" FLOAT, "Impounded body of water" CLOB, "Reservoir capacity" CLOB, "Dam wall height" CLOB, "Dam type" CLOB)

Which Year completed has a Dam type of earthfill embankment, and a Dam constructed of khancoban dam?
SELECT MAX("Year completed") FROM table_62076 WHERE "Dam type" = 'earthfill embankment' AND "Dam constructed" = 'khancoban dam'
SELECT MAX("Year completed") FROM "table_62076" WHERE "Dam constructed" = 'khancoban dam' AND "Dam type" = 'earthfill embankment'