Unit 15: Vocabulary

Please study the 16 vocabulary below and press the 'Mark Complete' button.
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& (ampersand)
a key which is used in many languages to mean 'and'
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In SQL queries it is best practice to spell out 'AND' and not just use the ampersand (&) as a shortcut.
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* (asterisk)
the character which often means "multiply" in a math equation or "match all" in a RegEx wildcard
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The programmer could not remember whether to use an asterisk (*) or a percent sign (%) as a wildcard in his SQL regular expression.
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@ (at sign)
the sign often used in email addresses to separate usernames from domain names
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The at sign key is often in very different locations on many international keyboards

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