Difficulty: Easy
Correct Answer: question mark (?); asterisk ()
Explanation:
Introduction / Context:
Different database systems support different wildcard characters. Knowing the Access-specific syntax is important for writing correct queries in Jet SQL or Access SQL.
Given Data / Assumptions:
Concept / Approach:
In Access, * (asterisk) represents any sequence of characters, and ? (question mark) represents any single character. This contrasts with SQL-92, where % and _ are the equivalents.
Step-by-Step Solution:
Verification / Alternative check:
MS Access Help confirms * and ? as the wildcard set.
Why Other Options Are Wrong:
%, _: SQL-92 standard, not Access.
, %: Mixed standard with Access, incorrect combination.
Common Pitfalls:
Using % and _ in Access queries, which will not work unless running in ANSI-92 mode.
Final Answer:
question mark (?); asterisk (*)
Discussion & Comments