Which of the following JPA-related statements is false?
a. You can update an existing entity by modifying its entity object in the context of a transaction.
b. Once a transaction is committed, the changes to the entity are saved to the database.
c. You can delete an existing entity.
d. When you commit a transaction the entity is kept as a backup in the database.
d. When you commit a transaction the entity is kept as a backup in the database. Actually, when you commit a transaction the entity will no longer exist in the database.
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If the ________ is set to Exclusive, no other users will be able to use the database
Fill in the blank(s) with correct word
Suppose you have the following declaration. double[] salesData = new double[500];Which of the following range is valid for the index of the array salesData.(i) 0 through 500(ii) 0 through 499
A. Only (i) B. Only (ii) C. Both are invalid D. None of these