Multiple choice technology databases

Select odd item from the list.

  1. VARCHAR2

  2. CHAR

  3. NCHAR

  4. VARCHAR
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D Correct answer
Explanation

VARCHAR is the ANSI SQL standard character type, while VARCHAR2 and CHAR are Oracle-specific. NCHAR is Oracle's Unicode character type. VARCHAR stands out as the odd one because it's the standard SQL type rather than Oracle's proprietary extension.

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