One of the most unusual and frustrating error of Oracle database. May happen because of no reference of a column in a table. Suppose you refer a column ca of table a for a column cb of table b. Your table definition is as like
foreign key (ca) references b(cb)
When you want to insert data on table a with such value for column ca with value that doesn’t exits in column cb of table b. You are just identified to have such error message.
by: Md. Shahjalal
Posted by Md. Shahjalal 
