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

what is the diffrence between before parameter form triger & formate trigger

2 4356

How can I convert single byte kana characters into multi byte kana characters and vice-versa.

2390

In SAP ECC 6.0 , under DB02 tcode , Tablespace name to be explain stepy step all the col

4165

How to restrict the duplicate records in table valuesets

IBM,

2 7290

how to pass 2 variables from one form to other form

Intelligroup,

2 8037

What is Virtual Memory?

1 4048

What is the disadvantage of User defind function?

CybAge,

2287

Please explan Why static query is more faster than dynamic query ?

2 7119

i want print character reports in 10g application reports pl help me my id is yoga.roh@gmail.com

3 8028

How do u print the data horizantally by using XML report? EX:Suppose there is one table names as SAMPLE in that we have only two columns say empno,ename.I want the output like this,At run time user may enter 3 colums(i.e to data print horizantally). empno ename empno ename empno ename 100 aaa 101 bbb 102 ccc 103 ddd 104 eee 105 fff

Intelligroup, TTPL,

2211

In Exception handling if we are using the when others first then what happens . whether it will show the compiler error

HCL,

2 12585

> 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?

2027

query optmization techniques and quwry analyser+projects+ppts

2412

Hi how Can I Add A Foreign key that references a table that has composit primary key ? example i had costumer table that has C_Id and SSN Both as PK and another table has C_Id that must refernece C_Id in Customers i done the usual way and got oracle error message about uniqeness any ideas plz

2 4462

how to find the n'th highest salary from emp ?

10 12513

Un-Answered Questions { Oracle }

Is there a combination of "like" and "in" in sql?

1051

Explain the function of optimizer in oracle?

1133

did u p prepared complex report

1992

How to convert the oracle reports to excel sheet from oracle?

How can we tune a sql query to optimize the performance of a database?

The system has a program that always includes the word nocomp in its name, how can you determine the number of processes that are using this program?

570

What is an artificial (derived) primary key?

610

Is oracle an open source?

1073

What is a tns service name?

1002

How does one create a new database?

586

Which directory will you copy your new reports, what would be its extension (.rdf or .rex)?

What are the differences between date and timestamp in oracle?

1044

Why cursor variables are easier to use than cursors?

1090

What are the numeric comparison operations?

1107

What is variable and how many types of variable?

582

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