What are different types of triggers?

0 Answers  

---

a procedure one in two out parameters i am waiting it in a sql query can i get the output

1 Answers  

---

What is the difference between nested table and varray?

0 Answers  

---

What are the types of variables use in pl sql?

0 Answers  

---

What is denormalization in a database?

0 Answers  

---

---

what is global temporary tables and how use that tables in pl/sql packages

1 Answers   Cap Gemini,

---

What do you understand by exception handling in pl/sql?

0 Answers  

---

Can we join more than 2 tables in sql?

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 a primary key and a unique key?

0 Answers  

---

What is dml with example?

0 Answers  

---

How to select all records from the table?

0 Answers  

---