Answer Posted / pawan

Select DISTINCT TOP 5 salary from emp_table1
UNION ALL
Select DISTINCT TOP 5 salary from emp_table2

for more details about UNION and UNION ALL check this: http://www.w3schools.com/sql/sql_union.asp

Write a trigger example in oracle?

573

---

> CREATE OR REPLACE FUNCTION FACTORIAL_1(factstr varchar2 ) 2 RETURN NUMBER AS 3 new_str VARCHAR2(4000) := factstr||'*' ; 4 fact number := 1 ; 5 BEGIN 6 7 WHILE new_str IS NOT NULL 8 LOOP 9 fact := fact * TO_NUMBER(SUBSTR(new_str,1,INSTR(new_str,'*')-1)); 10 new_str := substr( new_str,INSTR(new_str,'*')+1); 11 END LOOP; 12 13 RETURN fact; 14 15 END; explanation Above program?

1569

---

How do I limit the number of rows returned by an oracle query after ordering?

629

---

How to do paging with oracle?

573

---

How do I reset a sequence in oracle?

593

---

---

How we can able to import our own template (users designed MS-Word templates) which has many tabular columns; need to pass some values generate by Oracle-reports9i? Actually need to import more than 400 MS-Word templates into Oracle Reports-9i to minimize layout design in Reports.

1610

---

How can I get column names from a table in oracle?

534

---

Explain the use of owner option in exp command.

569

---

Can we connect to ORACLE db using Windows Authentication?

722

---

List the parts of a database trigger.

579

---

What is a cognitive schema?

526

---

Why do I get java.lang.abstractmethoderror when trying to load a blob in the db?

553

---

What is data file?

617

---

How to select all columns of all rows from a table in oracle?

588

---

What are the differences between date and timestamp in oracle?

551

---