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Oracle General Interview Questions
Questions Answers Views Company eMail

12 RULES OF RDBMS

 1 4521

How do we know whether an index is created on a table ???

TCS,

2 5983

Given two table employee and department EMP ---------------- empid deptid(fk) Dept --------------------- deptid(pk) deptname que-Write a query to find count of employee in each department. Expected Output- deptid countofEmployee --------------------------- 10 57 20 20 30 15

 2 6209

why should i declare foreign key constraint as self relation instead of binary relation in tables ?

Oracle,

2090

What happens internally when the user types userID/password@string in SQL PLUS Thanks-Bhaskar

Oracle,

1 4682

Which Database is the best for the Security issue ? 1. DB2 2.SQL Server 3.MySQL 4.ORACLE

 1 3581

Table1- have two column filename data AFGDFD-20112011 hi how r u bsdasd-23042011 name shoud be in bold Now i want output like filename data AFGDFD hi how r u bsdasd name shoud be in bold Kindly answer this

HCL,

3 5571

Table1- have two column filename data AFGDFD-20112011 hi how r u bsdasd-23042011 name shoud be in bold Now i want output like filename data AFGDFD hi how r u bsdasd name shoud be in bold Kindly answer this

HCL,

2 5376

select * from emp what happened internally when we write this query in the sql prompt?

 5 7847

can you explain performance tunning in oracle(sql,PL/SQL)

 2 4789

Two triggers one is before insert and other is after insert are firing on a table.If 10 times you insert in a table.Then how many times before trigger and how many types after trigger will fire in pl/sql.

 1 4228

DBMS vs. RDBMS

TCS,

2 5519

Which database is better for os platform dependency?

 1 3834

Why we choose emp number as primarykey?

 4 6802

am completed mca2011 how get certification in oracle

 1 3067

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Un-Answered Questions { Oracle General }

Briefly explain what is literal? Give an example where it can be used?

1087

What is a data lock in oracle?

1180

What is logical backup in oracle?

1082

How to convert characters to times in oracle?

1070

What is oracle datasource?

1039

What is pragma autonomous transaction in oracle?

1122

Can a formula column be obtained through a select statement ?

2380

What is analyze command used for?

1123

What are the various oracle database objects?

1202

How to create an oracle database?

1100

Difference between varchar and varchar2 data types?

1260

How to drop a stored procedure in oracle?

1104

Explain the use of rows option in exp command.

1147

How to define a variable of a specific record type?

1114

If youre unsure in which script a sys or system-owned object is created, but you know its in a script from a specific directory, what UNIX command from that directory structure can you run to find your answer?

2189

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