……………… defines rules regarding the values allowed in columns and is the standard mechanism for enforcing database integrity.

Related MCQs

• Which of the following can be addressed by enforcing a referential integrity constraint?
•                          is preferred method for enforcing data integrity
• ………………… is preferred method for enforcing data integrity
• Database __________ which is the logical design of the database, and the database _______ which is a snapshot of the data in the database at a given instant in time.
• Database __________ , which is the logical design of the database, and the database _______,which is a snapshot of the data in the database at a given instant in time.
• Which of the syntax is correct for insert statement? i) insert into <table_name> values <list of values> ii) insert into <table_name> (column list) values <list of values>
• Centralizing the integrity checking directly under the DBMS ………….. duplication and ensures the consistency and validity of the database.
• Which of the following can be used to supplement declarative referential integrity, to enforce complex business rules or to audit changes to data?
• HTTP defines two ways in which values entered by a user at the browser can be sent to the Web server. The            method encodes the values as part of the URL.
• What will be the number of columns of CARTESIAN PRODCUT if the participating relations have 5 and 7 columns respectively?