What are the three forms of normalization?

0 Answers  

---

Is sql the best database?

0 Answers  

---

What are the syntax and use of the coalesce function?

0 Answers  

---

What is parameter substitution in sql?

0 Answers  

---

How is a process of pl/sql compiled?

0 Answers  

---

What is the main difference between a UNION statement and a UNION ALL statement? 1. A UNION statement eliminates duplicate rows; a UNION ALL statement includes duplicate rows. 2. A UNION statement can be used to combine any number of queries; a UNION ALL statement can be used to combine a maximum of two queries. 3. A UNION statement can only combine queries that have parallel fields in the SELECT list; a UNION ALL statement can combine queries with differing SELECT list structures. 4. A UNION statement cannot be used with aggregate functions; a UNION ALL statement can be used with aggregate functions. 5. There is no difference between the two statements; they are interchangeable.

2 Answers   Saman Bank, Sonata,

---

What is the difference between Union and Union all. Which is faster.

0 Answers  

---

What are the different dml commands in sql?

0 Answers  

---

What is an oracle stored procedure?

0 Answers  

---

difference between pl/sql table and normal pl/sql table

2 Answers  

---

Please let me know if UNION ALL and Natural Join does the same operation and are same...

7 Answers   iGate,

---

Is trigger a stored procedure?

0 Answers  

---