randstr function

Applies to: check marked yes Databricks Runtime 16.1 and later

Returns a random string of length alpha-numeric characters.

Syntax 

randstr ( length [, seed] )

Arguments

  • length: A SMALLINT or INT constant non-negative expression, specifying the length of the result string.

  • seed: An optional SMALLINT, or INT expression serving as a seed for the random string generation.

Returns

An STRING consisting of the characters a-z, A-Z, and 0-9.

Examples 

> SELECT randstr(10), randstr(10);
  Xn2IiSepLX w3F34omh1C

-- Using a fixed seed, the outcome is deterministic series of random strings.
> SELECT randstr(10, 0), randstr(10, 0) FROM VALUES(1), (2), (3);;
  ceV0PXaR2I ceV0PXaR2I
  lBhHi56d0u lBhHi56d0u
  CtuwSOTLiL CtuwSOTLiL