A director's salary details are hidden from the employee. This process is called

In a multi-user database, if two users wish to update the same record at the same time, they are prevented by

Data security threat includes

A locked file can be

Locking can be used for

Transaction X holds a shared lock R. What happens if transaction Y requests for a shared lock on R?

Which command is used to remove rows from a table?

Which of the following is the characteristic of a relational database model?

Which command is used to remove a table or index from the database in SQL?

The command used to select only one copy of each set of duplicable rows is called

The model for a record management system might be a

Which of the following is at the highest level in the hierarchy of data organisation?

Which database handles full text data, image, audio and video?

Which of the following contains a complete record of all the activities that affect the contents of a database?

A data dictionary does not provide information about

Which of the following is a record based logical model?

Which of the following is a relational database?

Which of the following is the highest level of data abstraction?

A DBMS consists of application programs called

A large computer information system maintains many different computer files, which file is called perpetual file?

An entry in a telephone book can be compared to a

The logical data structure with one to many relationship is a

Which language is used by most DBMS for helping their users to access the data?

A schema describes

Data item characteristics that are important in data management include

The modify operation is likely to be done after

A report generator is used to

The distinguishable parts of a record are called

The set of permitted values for each attribute is called its

In a relational schema, each tuple is divided into fields called

The database environment has all of the following components except

Report generators are used to

Which of the following is the problem of file management system?

The index consists of

Periodically adding, changing and deleting file records is called file

In relation, model column is referred to as

E-R Model comes under

The way a particular application views the data from the database that the application uses is a

Embedded pointers provide

An attribute of one table matching the primary key of another table is called as

Which of the following is more concerned about the conceptual level of the DBMS?

If a relation is in BCNF, it is also in

Relations produced from an E-R model will always be in

In relational database systems, attributes correspond to

E-R modeling technique is a

Which of the following is not a record based logical model?

A table consists of

In an E-R diagram, ellipses represents

If every non key attribute is functionally dependent on the primary key, the relation will be in

If every non-key attribute is functionally dependent on the primary key, the relation will be in