Can a primary key contain more than one columns?

2 Answers  

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According to oracle specification VIEW is a object. OBJECT that means anything stored in the oracle database that has the physical existence.why VIEW doesn't take memory in oracle database, but it is treated as a object ?Please explain ?

2 Answers  

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

6 Answers  

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Give the different types of rollback segments.

0 Answers  

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what is the use of system.effective.date variable in oracle?

0 Answers  

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Can we create database in oracle using command line ?

0 Answers   MCN Solutions,

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What happens if variable names collide with table/column names?

0 Answers  

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What is a tns service name?

0 Answers  

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create or replace procedure show_tab_rec ( P_tab VARCHAR2 ) IS cmd varchar2(50); begin cmd := 'select * from '|| P_tab; for int in ( execute immediate cmd ) loop dbms_output.put_line ( int.ename||' '||int.deptno); end loop; end; when i m compling this procedure i m getting this error PLS-00103: Encountered the symbol "IMMEDIATE" when expecting one of the following: . ( ) , * @ % & | = - + < / > at in is mod remainder not range rem => .. <an exponent (**)> <> or != or ~= >= <= <> and or like LIKE2_ LIKE4_ LIKEC_ between || multiset member SUBMULTISET_ PLZ solve this error give this question answer asap Thanks advance.......

1 Answers   HCL,

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interview questions with answer for cts

0 Answers   Cognizant,

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In oracle there is column command, how will you explain that?

0 Answers   Aricent,

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What is STATSPACK tool?

3 Answers   Wipro,

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