Question: What's the authority when the roll is 40?
SQL: SELECT "Authority" FROM "2-12017602-6" WHERE "Roll" = 40.0;

Question: What's the authority when the roll is less than 234 for the Massey East area?
SQL: SELECT "Authority" FROM "2-12017602-6" WHERE "Roll" < 234.0 AND "Area" = 'Massey East';

Question: What's the roll for Summerland Primary when decile is over 6?
SQL: SELECT "Roll" FROM "2-12017602-6" WHERE "Decile" > 6.0 AND "Name" = 'Summerland Primary';