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Oracle Interview Questions

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Create table emp (id number(9), name varchar2(20),salary number(9,2)); The table has 100 records after table created.Now i nee to change id's Datatype is to be Varchar2(15). now Alter table emp modify(id varchar2(15),name varchar2(20), salary number(9,2)); Whether it will work or returns error? post answer with explanation.

13 22491

1) Difference between "Delete" and "Concatenate" with reference to databases? 2) Difference between SDLC and STLC. 3) Latest versions of the browsers used. 4) What is URL Tampering? 5) Full form of URL. I don't need the answers. These are just for reference.

2446

Could you please let me know the interfaces in OM / FA??

2270

can u tell me how many types of oracle and which type all detail in oracle (suppose all history of oracle )

1 4598

How do we use in the begining of any HTML page.

3 5908

What is a temp table? how to denote temp table?

4 11986

can anyone give FULL DETAILS on ATM scenarios, test cases and test cases PURPOSES

2079

what is meaning of multimedia?

16 27421

what is autonomouse transaction?

3 8228

write a script to check whether user enter a value is a leap year or not?

3 15726

What is workflow?Explain with a example?

2 9329

ORA-1688: unable to extend table SYS.WRH$_ACTIVE_SESSION_HISTORY partition WRH$_ACTIVE_3970712838_6793 by 128 in tablespace SYSAUX? What is the solution for this issue?

2 19647

proc means? proc sort? proc append? proc freq? proc print? proc content?

4 12787

How to Select second Maximum salary in a Table ?

13 15772

Which Functions Using Integer ==> String's i.e 2 ==> Two... Like that string's ==> integer values ? It is Possible ?

2 5045

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Un-Answered Questions

How can you save the sea from oil and sound polution?

2304

Which client would you advise to advertise on the google search network?

173

Explain the frequency allocation concept?

774

Why scala prefers immutability?

Is sql a case sensitive language?

947

How do I open windows start menu with keyboard?

858

What is overloading and overriding in oop?

1024

Can we nest the updatepanel controls? : asp.net ajax

951

How can you handle unmanaged code exceptions in asp.net?

1094

Why sink condition is atleast 3 times of saturation solubility? Why not less than 3 times?

3523

Please explain different modes of security in wcf? Or explain the difference between transport and message level security.

778

What are extern variables in c?

995

Explain application sandboxing.

784

What is the DataTableCollection?

1056

How do I install linux on a hard drive?

810