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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 22508

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.

2448

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 4601

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

3 5911

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

4 11990

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

2081

what is meaning of multimedia?

16 27435

what is autonomouse transaction?

3 8229

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

3 15730

What is workflow?Explain with a example?

2 9340

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 19648

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

4 12793

How to Select second Maximum salary in a Table ?

13 15781

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

2 5050

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Un-Answered Questions

What background apps can I disable windows 10?

884

What is the difference between the context filter to other filters?

371

What do the mb31 tcodes in sap- pm mean?

1085

Why is singleton class used?

1040

Tell me can wordpress use cookies?

146

How you will work with error handling in codeigniter?

635

What is open loop and control loop systems?

1134

What is an Automatic Payment Program ?

2125

What is the difference between defined, characterized and standard serum?

1193

What is data normalization?

What are the different types of arithmetic operations that can be performed by the 8085 microprocessor? Explain with an example?

1131

Name some of the PM Social Security Schemes?

1129

How many joins can you have in sql?

939

How do we represent comments in oracle?

1052

Which is faster entity framework or ado.net?

939