Is coalesce faster than isnull?

0 Answers  

---

Can you have more than one trigger on a table?

0 Answers  

---

What do you mean by rowid?

0 Answers  

---

How does cross join work in sql?

0 Answers  

---

what is a trigger? : Sql dba

0 Answers  

---

What are local and global Indexes and where they are useful.

0 Answers  

---

Given two tables Student(SID, Name, Course) and Level(SID, level) write the SQL statement to get the name and SID of the student who are taking course = 3 and at freshman level.

9 Answers   Oracle,

---

If I have a table T with 4 rows & 2 columns A & B. A has values 1,2,3,4. and B has 10,20,30,40. Write an Update SQL query which can Swap the values of A & B for all records. (Do not use a sub-query)

5 Answers  

---

What is clustered and non-clustered indexes?

4 Answers   Microsoft,

---

What is Primary Key?

4 Answers   Ramco,

---

What is the difference between nvl function, ifnull function, and isnull function?

0 Answers  

---

why we use nocopy?

2 Answers   Polaris,

---