SQL PLSQL Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

SQL PLSQL Interview Questions

Questions Answers Views Company eMail

what is the bond code in materialized view?

2999

what is the boundary line in varrays?

HCL,

1 8417

what is explain plan?

4 21291

When we give SELECT * FROM EMP; How does oracle respond?

Accenture, HCL, Infosys,

24 57783

What are the advantages and disadvantages, compared to the standard SQL and SQL*plus ?

2 13044

what is inline command?

2 9656

What are the default Oracle triggers??

CGI, Tech Mahindra,

3 19318

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Wipro,

8 37232

Begin For j in 4403201000 .. 4403202000 Loop If mod (j, 100) = 0 then Dbms_output.put_line (j); End if; End loop; End; what will be the output of this question

TCS,

7 12186

Dear All, Question for this Week Find out possible error(s) (either at compile time or at runtime) in the following PL/SQL block. State the reason(s) and correct the errors. Declare Cursor C1 is select ename, sal, comm from emp; Begin For i in C1 Loop If i.comm between 299 and 999 then Dbms_output.put_line(i.Ename || ‘ ** Good Commission’); Elsif i.comm > 999 then Dbms_output.put_line(i.Empno || ‘ ** Very Good Commission’); close C1; Else Dbms_output.put_line(i.Ename || ‘ ** ’ ||nvl(i.comm,‘O’)); End if; End Loop; End;

Accenture,

7 12891

Can we write create command in the plsql block?if possible how?

2 7357

What is differance unique key and primary key.

EDS,

7 11588

I have a small PL/SQL Block assume in this way begin select * from emp where empno=100; exception when others then when no_data_found then when too_many_rows then end; The question which he asked was whether this block will get executed normally or it will throw error ? If errored out then what is the reason for the error ? Could anybody please help me ? Regards Nakul Venkataraman

Satyam,

3 8861

1> how are u debugging in plsql ? 2> how to connect oracle database from unix. is there ne way other than using sqlplus ?

2 8785

how to retrive only second row from table?

IBM,

31 53054

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Un-Answered Questions { SQL PLSQL }

What's the difference between inner join and left join?

997

What are different types of sql?

1176

What is sql dialect?

1108

How can a function retun more than one value in oracle with proper example?

1071

Is sql sequential or random?

1025

What is record in pl sql?

1075

What are commit, rollback, and savepoint?

984

What are the most important characteristics of pl/sql?

1148

Does sql use python?

1022

How many joins can you have in sql?

930

How you improve the performance of sql*loader? : aql loader

1009

Explain what is sql*plus?

1138

Why do we need a foreign key?

1086

Can we join two tables without common column?

999

What is difference between ms sql and mysql?

956

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