Answer Posted / guest
integrity Constraints is used by oracle to check data
Integrity while performing operations into database.
Like columns is defined as not null.User cannot insert null
values into this column
Constraints:
1. Primary Key
2. Unique Key
3. Not Null
4. Referential Integrity(Foreign Key)
5.Check Constraints
| Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
explain commit and rollback in mysql : sql dba
What is the basic form of sql query?
What are data types in pl sql?
Is truncate ddl or dml?
How many primary keys can a table have?
How many postgresql users are there, worldwide?
Are views faster than queries?
What are the possible values that can be stored in a boolean data field?
How do I run a script in sql developer?
Do we need commit after truncate?
What is schema in sql?
What is bitemporal narrowing?
What does the base_object_type column shows in the user.triggers data dictionary view?
What is denormalization in a database?
How many developers work on postgresql?