Answer Posted / pravin kadam
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 ? | 1 Yes | 0 No |
Post New Answer View All Answers
Which one is better subquery or joins?
What is sql stand for?
mention if it is possible to import data directly from t-sql commands without using sql server integration services? If yes, what are the commands? : Transact sql
What is sql resultset?
Can we want to pass a parameter payroll_id to this external pl/sql function, how do we do it?
How do I run a sql query?
how to use like conditions? : Sql dba
How do I restart sql?
How can we optimize a sql query?
What is the current version of sql?
What is use of trigger?
what are the differences between char and varchar? : Sql dba
What is the purpose of the sql select top clause?
What is file based approach?
Could you please provide oca (oracle 10g) dumps for my certification ?