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rpad function

  • Άρθρο

Applies to: check marked yes Databricks SQL check marked yes Databricks Runtime

Returns expr, right-padded with pad to a length of len.

Syntax

rpad(expr, len [, pad] )

Arguments

  • expr: A STRING or BINARY expression to be padded.
  • len: An INTEGER expression.
  • pad: An optional STRING or BINARY expression with the pattern for padding. The default is a space character for STRING and x’00’ for BINARY.

Returns

A BINARY if both expr and pad are BINARY. Otherwise, returns a STRING.

If expr is longer than len, the return value is shortened to len characters. If you do not specify pad, a STRING expr is padded to the right with space characters, whereas a BINARY expr is padded to the right with x’00’ bytes. If len is less than 1, an empty string.

BINARY is supported since: Databricks Runtime 11.0.

Examples

> SELECT rpad('hi', 5, 'ab');
 hiaba
> SELECT rpad('hi', 1, '??');
 h
> SELECT rpad('hi', 5);
 hi

> SELECT hex(rpad(x'1020', 5, x'05'))
 1020050505