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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 17430

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.

1811

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

1584

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

1 3500

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

3 4271

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

4 9777

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

1451

what is meaning of multimedia?

16 21440

what is autonomouse transaction?

3 6587

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

3 13869

What is workflow?Explain with a example?

2 7798

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 17381

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

4 10744

How to Select second Maximum salary in a Table ?

13 10865

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

2 3430

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Un-Answered Questions

what is the use of vcb & isolator in substation?

1739

What are the data sources supported?

1571

List the requirements to install valet?

359

What is the difference between standard purchasing organization and reference purchasing organization?

550

Can we use binary transfer mode in sftp?

How to move a multi-file database?

391

Explain what is difference between query studio and report studio?

400

1...DIFF BETWEEN QTP AND WIN RUNNER? 2... CHECKPOINTS AND EXPLAIN EACH OF THEM? 3...WHY IS STEP GENERATOR? 4... WHAT IS THE DIFF BETWEEN FUNCTIONS AND SUB ROUTINE?

1301

Define an isomer?

447

What is microsoft spreadsheet compare?

386

How do I fix winword exe application error on windows 10?

326

if we have " ibm mainframe ",in that how to remove first and last leading space eg:"ibm mainframe" like that the answer we need

702

Every time your ad is eligible to show, adwords calculates its ad rank using your bid amount, components of quality score?

How does the viscosity vary with temperature?

472

What are streams in java 8?

406