Which of the following returns the book HANDCRANKED COMPUTERS in the results?

Question

BlackTom AI · Accepted Answer

To determine which option returns the book HANDCRANKED COMPUTERS, I’ll evaluate each SQL pattern against the target title.
Option 1: SELECT * FROM books
WHERE title = 'H_N_%';
This uses an equality comparison with a pattern literal, which is invalid SQL syntax for a LIKE pattern and would look for an exact string including the underscores and percent sign characters. Even if interpreted loosely, it would require the entire title to match the literal string H_N_% precisely, which HANDCRANKED COMPUTERS does not, so this would not return HANDCRANKED COMPUTERS.

Option 2: SELECT * FROM books
WHERE title LIKE 'H_N_C%T';
This pattern LILLY uses LIKE with H_N_C followed by any number of characters and then a literal T at the end. Since HANDCRANKED COMPUTERS ends with "ERS" and not with a literal T, this pattern would not match HANDCRANKED COMPUTERS. The trailing T makes it too restrictive and mismatched for the given title.

Option 3: SELECT * FROM books
WHERE title LIKE 'H_N_C%';
This pattern uses H as the first character, then a single arbitrary character, then N, then another arbitrary character, then C, followed by any trailing characters. HANDCRANKED COMPUTERS starts with H, then A, then N, then D, then C, which fits H_A/N/D/C sequence with the middle underscores representing single-character wildcards. The remaining characters after C are allowed by %, so HANDCRANKED COMPUTERS matches, making this the correct style for this title.

Option 4: SELECT * FROM books
WHERE title LIKE '_H%';
This pattern requires the second character to be H, with any character in the first position. HANDCRANKED COMPUTERS begins with H as the first character, not as the second, so this pattern would not match HANDCRANKED COMPUTERS. It would only match titles whose second character is H, which doesn’t align with the target.

In summary, Option 3 correctly employs the LIKE pattern with H_N_C% to capture the sequence H, any character, N, any character, C, followed by any remainder, which aligns with the title HANDCRANKED COMPUTERS. The other options either misuse equality with a LIKE pattern, add incompatible trailing characters, or impose positional constraints that exclude HANDCRANKED COMPUTERS.

BU.330.770.T2.FA25 Quiz 3- Requires Respondus LockDown Browser

Which of the following returns the book HANDCRANKED COMPUTERS in the results?

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