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
Can we use join in subquery?
What is a string data type in sql?
Define the select into statement.
How delete all records from table in sql?
Name the different types of indexes in sql and define them.
what are the system privileges that are required by a schema owner (user) to create a trigger on a table?
Why is nosql good?
What is the difference between left outer join and left join?
What are the types of records?
What is sqlca in powerbuilder?
What is the maximum number of columns in sql table?
What is normalisation in sql?
What is java sql connection?
What is trigger and types?
What is sqlservr exe?