Derived Channel
1.54K subscribers
252 photos
4 videos
374 files
68 links
القناة الأساسية
@stepbystep001

ومـما زادني شـرفـاً وتـيــهـاً
وكدت بأخمصي أطأ الـثريا
دخولي تحت قولك يا عبادي
وأن صـيَّرت أحمد لي نـبيـا
Download Telegram
A binary relationship set is of degree ..
Anonymous Quiz
2%
0
9%
1
86%
2
3%
3
A ternary relationship is a relationship type that involves many to many relationships between two tables
Anonymous Quiz
46%
T
54%
F
How many instances of one entity will or must be connected to a singleinstance from the other entities.
Anonymous Quiz
32%
Degree of Relationships
17%
Participation Constraint
51%
Cardinality Constraint
should be the norm in any relational database design and is found in all relational database
environments
Anonymous Quiz
23%
One-One Relationship
64%
One-Many Relationship
13%
Many-Many Relationship
المحاضره الرابعه
A computer language for storing, manipulating and retrieving data stored in a relational
Anonymous Quiz
2%
Javascript
98%
SQL
All relational database management systems use SQL as standard database language.
Anonymous Quiz
90%
T
10%
F
GRANT : DQL
Anonymous Quiz
11%
T
89%
F
CREATE : DDL
Anonymous Quiz
25%
F
75%
T
DROP :DML
Anonymous Quiz
24%
T
76%
F
TRUNCATE :DDL
Anonymous Quiz
67%
T
33%
F
UPDATE :
Anonymous Quiz
10%
DDL
85%
DML
4%
DCL
RENAME : DCL
Anonymous Quiz
17%
T
83%
F
The command is completed with a … at the end of the statement.
Anonymous Quiz
10%
colon
89%
semicolon
1%
hash
Creating a table by you assign a name and data type to each column (field or attribute)
Anonymous Quiz
92%
T
8%
F
SQL ensures data integrity via column’s description
Anonymous Quiz
95%
T
5%
F
SQL commands cannot retrieve and examine the data stored in a table
Anonymous Quiz
13%
T
87%
F
ensure that required columns are filled with data and that we do not enter duplicate entries by accident
Anonymous Quiz
6%
Comments
94%
Constraints