Why primary key is required?

0 Answers  

---

explain access control lists. : Sql dba

0 Answers  

---

How do you modify a table in sql?

0 Answers  

---

What is trigger in pl sql?

0 Answers  

---

IF EMP HAS 2 ROWS,DEPT HAS 4 ROWS.WHATS THE RESULT OF SELECT * FROM EMP,DEPT;

1 Answers  

---

---

What is meant by cursor in sql?

0 Answers  

---

what is heap table? : Sql dba

0 Answers  

---

what is 'mysqlimport'? : Sql dba

0 Answers  

---

Explain spool.

0 Answers  

---

What is exception? What are the types of exceptions?

0 Answers  

---

Is foreign key mandatory?

0 Answers  

---

why should required nested tables, Object types, partition tables and varying arrays. what is the difference between these are all. give me example with explanation.

2 Answers  

---