Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_203_156 ( id number, "team" text, "outgoing manager" text, "manner of departure" text, "date of vacancy" text, "replaced by" text, "date of appointment" text, "position in table" text )

### Question ###
how many times was the date of appointment in the month of november ?

### Accurate SQL ###

SELECT COUNT(*) FROM table_203_156 WHERE "date of appointment" = 11