CREATE TABLE table_10138 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Venue" CLOB, "Crowd" FLOAT, "Date" CLOB)

Which date was corio oval the venue?
SELECT "Date" FROM table_10138 WHERE "Venue" = 'corio oval'
SELECT "Date" FROM "table_10138" WHERE "Venue" = 'corio oval'