Oracle Random Function Features

The characteristics of Oracle’s random function are as follows:

1. 生成均匀分布的随机数：Oracle的随机函数可以生成均匀分布的随机数，确保每个可能的值出现的概率是相等的。
   Generate random numbers with a uniform distribution: Oracle’s random function can create random numbers with a uniform distribution, ensuring that each possible value has an equal probability of occurring.
2. Oracle random function can generate random numbers of different data types, such as integers, decimals, and dates.
3. You can define the range of random numbers: Oracle’s random function allows you to specify the range of random numbers, such as generating random integers between 1 and 100.
4. Oracle random function can generate multiple random numbers at once, reducing the cost of queries.
5. Randomness controllable: Oracle’s random function can generate random numbers by setting a seed value, where the same seed value will produce the same random sequence.

It is important to note that Oracle’s random function is not a true random number generator, but rather generates pseudo-random number sequences based on a seed value. If a more random value is needed, other methods can be used, such as using random numbers generated by hardware devices as the seed value.