DBMS helps achieve
Centralized control of data
Data independence
Both A and B
Neither A nor B
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- The _____ category includes storage media that can be operated on directly by the computers central…
- In 2NF
- The ______ key of a relation is the attribute (column) or collection of attributes, which uniquely identify…
- Drop Table cannot be used to drop a table referenced by a ______ constraint.
- Which of the following constitutes a basic set of operations for manipulating relational data?
- E-R Modeling is achieved by using ____ diagrams
- The transactions like adding an employee, enrolling a student in a course are examples of _______
- The part of a database management system which ensures that the data remains in a consistent state is
- The one guideline to be followed while designing the database is
- As per equivalence rules for query transformation, selection operation distributes over
- A relation is in attribute of other composite key. if an attribute of a composite key is dependent on…
- If the closure of an attribute set is the entire relation then the attribute set is a
- A table can have only one
- In an E-R diagram double lines indicate
- A DBMS is a ____ user if at most one user can use the system and is mostly restricted to personal computer…
- The fact that information in the data warehouse changes far less often and may be regarded as non-real-time…
- If a transaction T has obtained an exclusive lock on item Q, then T can
- Key to represent relationship between tables is called
- Which of the following is not comparison operator?
- Protection of data from unauthorized Disclosure results in loss of _______
- DFD stands for
- Whenever two independent one-to-many relationships are mixed in the same relation, a __________ arises.
- The concept of mapping of ______ entity types is the concept in which the for each strong entity type…
- Use of UNIQUE while defining an attribute of a table in SQL means that the attribute values are
- What will be the number of columns and rows respectively obtained for the operation, A- B, if A B are…
- The full form of GUI is _________
- Assume transaction A holds a shared lock R. If transaction B also requests for a shared lock on R.
- In an ER model,_____ is described in the database by storing its data.
- The data models defined by ANSI/SPARC architecture are
- Which one is true statement :