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An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity.
Public key encryption uses multiple keys.ne key is used to encrypt data, while another is used to decrypt data.he key used to encrypt data is called the _______ key, while the key used to decrypt data is called the ________ key.
The relation with the attribute which is the primary key is referenced in another relation. The relation which has the attribute as a primary key is called ______________
Assume that your version of C++ can recognize only the first 8 characters of an identifier name, through identifier names may be arbitrarily long. Which of the following identifier names is not distinct:
A primary key is a composite key that was selected to be the main identifier for the relation.
Given the following statements: S1: A foreign key declaration can always be replaced by an equivalent check assertion in SQL. S2: Given the table R (a, b, c) where a and b together form the primary key, the following is a valid table definition. CREATE TABLE S (                 a INTEGER,                 d INTEGER,                 e INTEGER,                 PRIMARY KEY (d)                 FOREIGN KEY (a) references R) Which one of the following statements is CORRECT?
An enterprise key is a primary key whose value is unique for a given relation.
An attribute in a relation is a foreign key if the _______ key from one relation is used as an attribute in that relation.
Let relation R2 has a Foreign Key that refers to Primary Key of relation R1. Which of the following operations may cause violation of referential integrity constraints? I: insert into R1 II: insert into R2 III: delete from R1 IV: delete from R2
The primary key of the new relation in a many-to-many relationship is a composite key comprised of the primary keys of each of the binary entities.