How to add a new column to an existing table in oracle?
What is self-referential integrity constraint ?
What is truncate oracle?
Explain the use of compress option in exp command.
What is an oracle wallet?
What is a proxy object?
Is rowid unique in oracle?
"primary key=unique+null" is equal,reson?not,reason?
How to get a list of all tables in the database?
What is mean by Program Global Area (PGA) ?
What is a Data File ?
What is bulk copy or bcp in oracle?
What is Data Dictionary Cache in Oracle?