Week 2-2 Flashcards

1
Q

Schema

A

스키마
데이터베이스의 구조

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

Instance

A

어느 순간에 데이터가 가지고 있는 콘텐츠

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

Superkey

A

Relation에서 unique하게 tuple을 식별할수 있는 Attribute의 집합

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

Candidate key

A

Superkey 중 minimal한 키

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

Primary key

A

Candidate key중 하나

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

Foreign key

A

타 relation을 참조하는 attribute

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

Foreign key

A

타 relation을 참조하는 attribute

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

Entity

A

개체

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

DDL

A

Data definition language

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

DDL

A

Data manipulation language

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

DCL

A

Data control language

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

Manipulate

A

조작하다

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

Manipulate

A

조작하다

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

TCL

A

Transaction control language

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

Query

A

질의

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