CREATE TABLE table_19848 ("PRINT NAME" TEXT, "NICKNAME" TEXT, "NUMBER OF COLORS" TEXT, "FRAMED SIZE" TEXT, "DATE COMPLETED" TEXT)

when the nickname halley is used, what are the date completed
SELECT "DATE COMPLETED" FROM table_19848 WHERE "NICKNAME" = 'Halley'
SELECT "DATE COMPLETED" FROM "table_19848" WHERE "NICKNAME" = 'Halley'