What are the characteristics of the float data type in SQL?

  1. The float type is used to store floating-point numbers, which can represent decimal values.
  2. The precision of the Float type can be freely set within a certain range, usually as single precision (4 bytes) or double precision (8 bytes).
  3. Values of the Float type are represented in memory in binary form and can store very large or very small numerical values.
  4. Values of type Float can include positive and negative signs, as well as decimal points.
  5. The accuracy of calculations using Float data type may have some errors due to the fact that floating-point numbers are represented in binary form in computers, leading to some precision loss.
  6. For storing a wide range of numbers, the Float type is suitable, but for calculations requiring high precision, it is recommended to use the decimal type.
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