Answer Posted / ram

to avoiding duplicate data and easy maintence
it depends on entity relationship between columns

Does oracle database need java?

516

---

Is postgres faster than oracle?

555

---

How can I see all tables in oracle?

535

---

Which are the five query types available in oracle?

524

---

How to start a new transaction in oracle?

586

---

---

Explain the use of show option in imp command.

633

---

How to use subqueries in the from clause in oracle?

575

---

What is an index associated with a constraint?

546

---

What is an oracle recycle bin?

544

---

What is the relationship among database, tablespace and data file?

532

---

How to manage transaction isolation level?

551

---

what is reindexing?

1168

---

Explain what are the type of synonyms?

573

---

How do I know if oracle client is installed on windows?

492

---

How to create a single index for multiple columns?

554

---