____ table store information about database or about the system.
SQL
System
Nested
None of these
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- Between DRAM and magnetic disk storage another form of memory, called ______ memory is becoming common…
- Isolation of the transactions is ensured by
- Create a table with the following attributes: Employee(EMPNO integer, EMPNAME of 10 characters)
- _____ database is used to provide statistical information or summaries of values based on various criteria.
- DBMS is a collection of _____ that enables user to create and maintain a database.
- If the closure of an attribute set is the entire relation then the attribute set is a
- Which of the following relational algebraic operations is not from set theory?
- The data in the database at a particular moment of time is called the _______
- A data type or format is specified for each _________
- The one guideline to be followed while designing the database is
- In an ER diagram the ___shape specifies the Attibute and a ____ shape specifies the primary key attribute.
- If two relations R and S are joined, then the non matching tuples of both R and S are ignored in
- Relationships among relationships can be represented in an-E-R model using
- When an E-R diagram is mapped to tables, the representation is redundant for
- Which of the following is not a characteristic of a relational database model?
- Dependency preservation is not guaranteed in
- Grant and revoke are _____ statements.
- An advantage of the database management approach is
- A list consists of last names, first names, addresses and pin codes. If all people in the list have…
- In an E-R, Y is the dominant entity and X is a subordinate entity. Then which of the following is incorrect…
- In 2NF
- What will be the number of columns and rows respectively obtained for the operation, A- B, if A B are…
- Employees in a company are each assigned their own office, i.e. for each employee there exists a unique…
- The collection of information stored in a database at a particular moment is called as ......
- A top-to-bottom relationship among the items in a database is established by a
- Whenever two independent one-to-many relationships are mixed in the same relation, a __________ arises.
- ______ keyword is used to find the number of values in a column.
- _____clause is an additional filter that is applied to the result.
- For using a specific database …………… command is used.
- ______is a special type of integrity constraint that relates two relations & maintains consistency across…