CREATE TABLE table_78066 ("Theatre" CLOB, "Current show" CLOB, "Classification" CLOB, "Capacity" FLOAT, "Opening date" CLOB, "Closing date" CLOB)

What opening date has a capacity of 100?
SELECT "Opening date" FROM table_78066 WHERE "Capacity" = '100'
SELECT "Opening date" FROM "table_78066" WHERE "Capacity" = '100'