Explain different types of Views ?
Answers were Sorted based on User's Feedback
Answer / 9742108000(venu gopal reddy)
The views are Mainly 2 types .
1-> SIMPLE VIEW
2-> COMPLEX VIEW
Simple view:
- It is created by selecting only one table.
- It does not contains functions.
- it can perform DML (SELECT,INSERT,UPDATE,DELETE,MERGE, CALL,LOCK TABLE) operations through simple view.
Complex view :
-It is created by selecting more than one table.
-It can performs functions.
-You can not perform always DML operations through Complex views.
Is This Answer Correct ? | 22 Yes | 2 No |
Answer / vivekanand
basically there are five type of view
1-simple view
2-complex view
3-read only view
4-check option view
5-force view
Is This Answer Correct ? | 16 Yes | 11 No |
Answer / sweta
There are two types of view-
1.Simple view(does not contain function, only one table exists,allow DML operation)
2.Complex View (Allow function,multiple table,did not allow DML operations all time)
Attributes of view --
1.with check option
2.read only
3.Force|Noforce
Is This Answer Correct ? | 6 Yes | 4 No |
Answer / kishan j vasoya
There are two types of view.
1. Read only view:
which is created by using more then one table.
2. Updatable view:
Which is created by using one table so it's updatable.
Is This Answer Correct ? | 0 Yes | 1 No |
Answer / aarthigha
data abstraction
data models
instance and schemas
definition languages
Is This Answer Correct ? | 12 Yes | 20 No |
Define sub-query.
What is snow flake schema design in database? What's the difference between star and snow flake schema?
Which is fastest database?
What is index and also explain types of indexing in dbms?
What is pdo in database?
What are the key constraints in dbms?
What is On-line Redo Log?
How do you set a primary key?
Which database is used by google?
Who is the founder of database?
When is functional dependency said to be the fully functional dependency?
what is the difference between two and three-tier architectures?