Question

In C# I can generate random number from a string like this:

public string CreateRandomNumber(string normal)
{
    string abnormal = (new Random(normal.GetHashCode())).Next().ToString();
    return abnormal;
}

But I want to do the same (kind of) operation inside the oracle database. So, how can I generate a random number from a string ?

Answer 1

The DBMS_RANDOM package provides a built-in random number generator.

Using the
SEED Procedures, you can pass a VARCHAR2 as the seed, so you can skip the hash generation step.

SEED Procedures

This procedure resets the seed.

Syntax

DBMS_RANDOM.SEED (
   seed  IN  BINARY_INTEGER);

DBMS_RANDOM.SEED (
   seed  IN  VARCHAR2);