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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 22540

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.

2453

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

2276

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

1 4604

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

3 5921

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

4 12002

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

2082

what is meaning of multimedia?

16 27471

what is autonomouse transaction?

3 8241

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

3 15738

What is workflow?Explain with a example?

2 9343

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 19655

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

4 12807

How to Select second Maximum salary in a Table ?

13 15817

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

2 5059

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Un-Answered Questions

How do I edit a stored procedure in sql server?

932

Do you know different schemes launched by Modi Government?

1024

What are "class access modifiers" in C#?

974

Is there a rule of thumb to estimate the footprint of a cooling tower during design phase?

1249

what is the pay for a animator?

2401

What is cookie with example?

933

Explain the 'storage location' in sap?

1210

What is Mapper in Hadoop MapReduce?

745

Tell briefly about the Banker's algorithm and what is it used for?

974

Is android marshmallow better than nougat?

896

What is Weak Entity set?

791

Differentiate soap and rest web services?

677

How to trigger the idoc?

1043

What chkdsk to run?

867

What are the two components of html attributes?

1185