Question

Remember there are two wildcard characters for selecting rows: % matches one or more arbitrary characters...

Remember there are two wildcard characters for selecting rows: % matches one or more arbitrary characters _ matches a single arbitrary character These are interpreted by the LIKE operator. Can you remember these two characters? Can you make a query using them?

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Answer #1

Wildcard Characters

  • The percent sign (%)
    Matches one or more characters.
  • The underscore (_)
    Matches one character.

Syntax for query

SELECT FROM TABLENAME
WHERE COLUMN LIKE 'XXX%'

SELECT FROM TABLENAME
WHERE COLUMN LIKE 'XXX_'
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