Which iSQL*PLUS feature can be used to replace values in the WHERE clause?

technology databases

  1. Substitution variables

  2. Replacement variables

  3. Prompt variables

  4. Instead-of variables

  5. This feature cannot be implemented through iSQL*PLUS

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Correct Option: A
Explanation:

To solve this question, the user needs to have knowledge about iSQL*PLUS and its features.

The answer is A. Substitution variables.

Explanation:

Substitution variables can be used to replace values in the WHERE clause of an iSQL*PLUS query. Substitution variables are identified by an ampersand (&) followed by a variable name. When a query is executed, iSQL*PLUS prompts the user to enter a value for each substitution variable. The entered value is then substituted in place of the substitution variable in the query.

Option B, Replacement variables, is not a valid iSQL*PLUS feature.

Option C, Prompt variables, is not a valid iSQL*PLUS feature.

Option D, Instead-of variables, is not a valid iSQL*PLUS feature.

Option E is incorrect because substitution variables can be used in iSQL*PLUS to replace values in the WHERE clause.

Therefore, the correct answer is A. The Answer is: A

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