浮点数字类型

Created: November-22, 2018

CREATE TABLE all_floating_numeric_types(
  c_float float, 
  c_double double
);

最小和最大数据值：

insert into all_floating_numeric_types values (-3.4028235E38,-1.7976931348623157E308);
insert into all_floating_numeric_types values (-1.4E-45,-4.9E-324);
insert into all_floating_numeric_types values (1.4E-45,4.9E-324);
insert into all_floating_numeric_types values (3.4028235E38,1.7976931348623157E308);