Answer / hemant

Interprter works line by line but compiler execute its all
work as a program..like if any sql query has error then sql
will how that x line has error ..

How can you view the errors encountered in a trigger?

0 Answers  

---

Write a query to display the current date in sql?

0 Answers  

---

What is a temp table?

0 Answers  

---

Why is nosql good?

0 Answers  

---

what is autonomouse transaction?

3 Answers   Oracle,

---

---

what is sql server agent? : Sql dba

0 Answers  

---

Hi, Can anybody please explain me the flow of the below query. I am not able to understand how this query works. This query is for finding the Nth highest salary.. SELECT DISTINCT (a.sal) FROM EMP A WHERE &N = (SELECT COUNT (DISTINCT (b.sal)) FROM EMP B WHERE a.sal<=b.sal); If N = 2 then second highest salary will be the o/p. If N = 3 then third highest salary will be the o/p. and so on.. Thanks, Nitin

5 Answers   Deloitte, Ness Technologies,

---

what is global variable in pl/sql

1 Answers  

---

If we declare constraints Unique and Not null on a single column then it will act as a Primary key, so what is the use of primary key??

3 Answers  

---

is it mandatory to select all the column in a view then what columns should be selected

2 Answers  

---

List the different type of joins?

0 Answers  

---

I have a Employee table with columns ename,eid,salary,deptno. How to retrieve sum of salary for each deptno?

8 Answers   L&T,

---