Question: What value has Negative infinity?
SQL: SELECT "Value" FROM "2-15189-4" WHERE "Type" = 'Negative infinity';

Question: What's the exponent field that has 255 exp and value of +∞?
SQL: SELECT "Exponent field" FROM "2-15189-4" WHERE "Exp (biased)" = '255' AND "Value" = '+∞';

Question: What's the type of 0.0 value?
SQL: SELECT "Type" FROM "2-15189-4" WHERE "Value" = '0.0';

Question: What's the Significant of a value 1.0?
SQL: SELECT "Significand (fraction field)" FROM "2-15189-4" WHERE "Value" = '1.0';