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?

3002

what is the boundary line in varrays?

HCL,

1 8427

what is explain plan?

4 21320

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

Accenture, HCL, Infosys,

24 57858

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

2 13058

what is inline command?

2 9671

What are the default Oracle triggers??

CGI, Tech Mahindra,

3 19345

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Wipro,

8 37258

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 12223

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 12916

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

2 7371

What is differance unique key and primary key.

EDS,

7 11615

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 8886

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

2 8796

how to retrive only second row from table?

IBM,

31 53168

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Un-Answered Questions { SQL PLSQL }

Show code of a cursor for loop.

1054

How to run sql statements through the web interface?

1040

what is the functionality of the function htmlentities? : Sql dba

960

How to fetch alternate records from a table?

1241

What is sqlite used for?

999

What do you mean by query optimization?

1002

How many types of cursors are available in pl/sql?

1109

What is application trigger?

997

What do you understand by pl/sql cursors?

1086

What is normalisation and its types?

1004

Which command is used to call a stored procedure?

1000

Write the alter statement to enable all the triggers on the t.students table.

1125

Can you rollback after commit?

983

Describe sql comments?

1038

what is single byte over head in oracle..?

2401

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