Describe Referential Integrity ?
Answer / orawhiz
A rule defined on a column (or set of columns) in one table
that allows the insert or update of a row only if the value
for the column or set of columns (the dependent value)
matches a value in a column of a related table (the
referenced value). It also specifies the type of data
manipulation allowed on referenced data and the action to be
performed on dependent data as a result of any action on
referenced data.
| Is This Answer Correct ? | 4 Yes | 0 No |
What are the differences between char and nchar in oracle?
Explain temporal data types in oracle
What is the usage of control file in oracle?
In what script is snap$ created? In what script is the scott/tiger schema created?
what is Table ?
How would you best determine why your MVIEW couldnt FAST REFRESH?
What is the exact use of Collections?
How to install oracle database 10g xe?
How to create an oracle testing table?
State and explain the different types of data models?
What are the uses of Database Trigger ?
Difference between open_form and call_form in oracle.