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Word Palindrome Coding
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Word Palindrome Coding

MediumSQL · PostgreSQL

Problem

Write a code to make a word palindrome.

Use PostgreSQL to evaluate each input word. Comparison should be case-insensitive and ignore spaces and punctuation. Treat an empty normalized string as a palindrome and a NULL input as not a palindrome.

Output

  1. One row per input word, ordered by word_id
  2. Columns: word_id, input_word, normalized_word, and is_palindrome
  3. is_palindrome must be a Boolean value

Schema

words
ColumnTypeDescription
word_idPKINTUnique identifier for the input word
input_wordVARCHAR(255)Word or phrase to evaluate
Tableswords
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