Can someone help me please with those question 1:what is the best data type for

Question

Can someone help me please with those question

1:what is the best data type for student id

datatime,currency,number,decimal

2:which relationshipis preferable?

one to one,one to many,many to many

3:if you add table A's primary key to table B what is that field called in table B

text,entity,attribute,foreign key ,none of bove

4:what is raw in database also called?

Equation,feild,record,attribute,none of bove

5:what is primary key called when there are tow feilds combined to create it

compound or composite primary key,multi-primary key,Expounded primary key,none of bove

6:what is an attribute in databases?

a feild,a row,a table,none of bove,all of bove

7:which of the following would no be an entity in a database?

employee ,universty of colorado denver id ,product,other

8:is it preferdable to have a primary key that is a number or a charcter feild?

number , chracter dosent matter

Explanation / Answer

1:what is the best data type for student id
datatime,currency,number,decimal

ans number

2:which relationshipis preferable?
one to one,one to many,many to many

Ans one to one is preferable since in both the tables there will one rows in each table that match the criteria, so the data will be less in the table and

3:if you add table A's primary key to table B what is that field called in table B
text,entity,attribute,foreign key ,none of bove

ans foreign key

4:what is raw in database also called?
Equation,feild,record,attribute,none of bove

and record

5:what is primary key called when there are tow feilds combined to create it
compound or composite primary key,multi-primary key,Expounded primary key,none of bove

ans compound or composite primary key

6:what is an attribute in databases?
a feild,a row,a table,none of bove,all of bove

ans feild

7:which of the following would no be an entity in a database?
employee ,universty of colorado denver id ,product,other

ans other

8:is it preferdable to have a primary key that is a number or a charcter feild?
number , chracter dosent matter

ans number or character doesn't matter

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