Oracle Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Oracle General (1809)
Oracle DBA (Database Administration) (261)
Oracle Call Interface (OCI) (10)
Oracle Architecture (90)

Oracle Interview Questions

Questions Answers Views Company eMail

how to find find & delete duplicate rows from two different tables?

3 11819

i want to print the employee details on department wise with group above report with the fields DEPTNO------group above ENAME ------ SAL-------- COMM------ I WANT OUTPUT LIKE THIS ---------------------------------------------------------- 1)FIRST DEPTNO=10 EMPLOYEES DISPLAYED IN FIRST PAGE AND DEPTNO=20 EMPLOYEES DISPLAYED IN 2ND PAGE WHAT I HAVE TO DO OUTPUT ------- --FIRST_PAGE ----------- DEPTNO:10 ENAME SAL COMM KING 5000 A 2000 2222 ---- =- -- SECONDPAGE DEPTNO:20 ENAME SAL COMM MILLER 220 22 D 45 23 -- - - LIKE THE ABOVE PROCDURE REPORTS HOW MANY DEPARTMENTS ARE EXISITING IN EMP TABLE

2990

plz explain when we are using pre-query,post-query,pre-insert and post-insert?plz explain with one example

2 15922

• What is oracle Architecture?

3 6459

You have one employee table having 3 entries emp_id, Mgr_id and salary. Mgr_id is also referencing emp_id. so now find out the emp_id which are having the second highest salary, under a particular manager.

Amazon, HCL,

3 8720

how to hide the scroll bar in forms 6i

2 13502

I'm doing my final year and i ve planned to do an oracle certification , is this the rit tim nd wat's the future scope??

1 3453

How can I sum column wise in Oracle excel report?

1 5832

how to retrieve 1st and last row of table without using group functions??

6 8744

How to Identify the previously inserted/updated records in already populated table.

2732

Which is the cheapest and quality Oracle Education provider in Bangladesh?

1 3704

how can get like this result table A col1 col2 --- ----- a A b B C C .. .. .. ... .. ... wants result like for a single column col1 ------ a,b,c,........n of data and another is col1 ------- A B C D ........ a b b d ........

TCS,

2 5063

without using count(*) and rownum how can we count total record in a table

AC, HP,

5 10191

you are sorting a table using "order by"(descending) clause of a column which contains a null value...whether that row containing null value will come first or last in the output??

BirlaSoft,

2 5860

Which is the best institute in Hyderabad to learn OBIEE and DataStage?Please tell me faculty name also

2265

Un-Answered Questions { Oracle }

Explain rename?

988

How to get / select the nth row from the table?

Explain how to convert a report into excel sheet.

What is Data Dictionary Cache in Oracle?

1169

A scenario for amount correction & how to use amount correction functionality in AP invoices

2140

What happens to indexes if you drop a table?

1172

What happens when the default and temp tablespace clauses are left out from create user statements?

579

How is rman better than user-managed backup recovery process?

what is insert all statement in sql

6528

How will you write a query to get a 5th rank student from a table student_report?

1867

What is flashback in Oracle?

1023

What is SQL access advisor in Oracle?

1197

What are the various benefits of using rac architecture?

How do I become a database administrator?

577

What are transaction isolation levels supported by oracle?

1075

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