Multiple choice technology databases

which of the following are wildcard characters?

  1. %
  2. $

  3. _

  4. *
Reveal answer Fill a bubble to check yourself
A,C Correct answer
Explanation

The % and _ are the standard SQL wildcard characters used with LIKE: % matches any sequence of characters (including zero), and _ matches exactly one character. The $ and * are not SQL wildcards - * is used in SELECT for columns, and $ has no wildcard meaning in SQL.

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