DBMS Flashcards

1
Q

selection operator

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Projection Operator

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Union operator

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Set difference operator

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Set intersection operator

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

rename operator

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

cross product operator

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Natural Join operator

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Conditional Join

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Theta join

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

division operator

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

degree of a relation schema

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

power of relational algebra and relational calculus

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Safe and unsafe relational calculus

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Domain relational calculus

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

tuple relational calculus

A

Relational Algebra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

SELECT operator

A

SQL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

GROUP BY

A

SQL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Operators in SQL

A

SQL

20
Q

one to many and many to many

A

Entity Relationship

21
Q

Symbols in ER Diagram

A

Entity Relationship

22
Q

ER Diagram

A

Entity Relationship

23
Q

prime attribute

A

Key constraints

24
Q

candidate key

A

Key constraines

25
Q

super key

A

Key constraines

26
Q

primary key

A

Key constraines

27
Q

Indexing

A

Views and Indexes

28
Q

Dense and Sparse index

A

View and Indexing

29
Q

Types of indexes

A

Views and Indexes

30
Q

Secondary index

A

View and indexing

31
Q

Nested loop join and Block nested loop join

A

Joins

32
Q

Left outer join and natural join

A

Joins

33
Q

correlated query

A

Queries and Sub Queries

34
Q

HAVING and GROUP BY

A

Queries and Sub Queries

35
Q

WITH attribute

A

SQL

36
Q

1NF

A

BCNF DBMS normalization

37
Q

Functional dependencies

A

Functional Dependency

38
Q

Trivial and Non trivial FD

A

Functional Dependency

39
Q

Properties of FD

A

Functional Dependency

40
Q

minimal keys or minimal superkeys

A

Functional Dependency

41
Q

Topological ordering of directed graph

A

File Structures (B+ tree)

42
Q

B tree and it’s properties

A

File Structures (B+ tree)

43
Q

B+ tree

A

File Structures (B+ tree)

44
Q

Difference between B tree and B+tree

A

File Structures (B+ tree)

45
Q

dependency preserving decomposition

A

BCNF

46
Q

lossless decomposition

A

BCNF

47
Q

Minimal cover of relation

A

Functional dependency