CREATE TABLE table_78311 ("Team" CLOB, "Outgoing manager" CLOB, "Date of departure" CLOB, "Replaced by" CLOB, "Date of Appointment" CLOB)

When is the appointment date for outgoing manager Petrik Sander?
SELECT "Date of Appointment" FROM table_78311 WHERE "Outgoing manager" = 'petrik sander'
SELECT "Date of Appointment" FROM "table_78311" WHERE "Outgoing manager" = 'petrik sander'