If in relation r, values x and y are only dependent on the primary key and not on each other, then they are said to be:

A phase when a transaction may obtain locks but may not release any lock is:

Head Crash on the disk is:

A candidate key that involves more than one attribute is said to be:

Who gave the 12 rules for any RDBMS to be accepted as a full-fledged RDBMS?

Execution of a transaction in isolation preserves:

Rollback causes the current transaction to:

The candidate key which is not a primary key is said to be:

Which timestamp is denoted by the W-timestamp (Q) of a transaction?

The collection of information stored in a database at a particular moment is called:

Finding relevant information from a large volume of data is called: