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_397 ( id number, "series" text, "launch date" text, "finale date" text, "days" number, "housemates" number, "winner" text, "main presenter" text, "grand prize" text, "liveshow\naudience\nmillions" number )

### Question ###
how many seasons lasted more than 100 days ?

### Accurate SQL ###

SELECT COUNT("series") FROM table_203_397 WHERE "days" > 100