Answer:
The answer is "Option d".
Explanation:
In the database DELETE or delete is a keyword, that is used to eliminates one or more files from the table. This key is a part of SQL, that removes data when a specific condition is used otherwise, it will remove all documents, and other choices were wrong, that can be described as follows:
- In option a, It is wrong because it is not a key, and it is no used in the database.
- In option b, It is used to exit from the database, that's why it is wrong
- In option c, It is not correct because it is used for freeing space in the database.
Answer:
The answer is "None of these".
Explanation:
In the given question an array "sales[]" is declared, which contains 50 double type elements, and in the next line, an integer variable j is defined, which uses a for loop. In this question two options is given, in which both are not correct, that can be described as follows:
- In option (i), A loop is defined that, uses variable j which starts with 0 and ends with 48, So total elements are 48 that's why it is not correct.
- In option (ii), A loop will use variable j that, starts with 1 and ends with 49, That's why it is not correct.
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