Question: What is the lowest decile that Ohau School has?
SQL: SELECT MIN("Decile") FROM "2-12197750-7" WHERE "Name" = 'Ohau School';

Question: What gender is allowed to attend the school that has a decile of 6 and a roll that is less than 179?
SQL: SELECT "Gender" FROM "2-12197750-7" WHERE "Decile" = 6.0 AND "Roll" < 179.0;

Question: What gender is allowed at the school which has a roll of 338?
SQL: SELECT "Gender" FROM "2-12197750-7" WHERE "Roll" = 338.0;

Question: What authority controls the school in Levin that has a decile of 6, and a roll of 226?
SQL: SELECT "Authority" FROM "2-12197750-7" WHERE "Decile" = 6.0 AND "Area" = 'Levin' AND "Roll" = 226.0;