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 AUTH_ID and AUTH_USER in pl/sql ?

INDUS,

2193

----> There is a table T with two columns C1 and C2. The data is as below: C1 C2 1 4 2 5 3 6

ICICI,

4 4861

Easy way to convert tableau "IF - ELSEIF" statements to Netezza "CASE" statements.

CTS,

1 2683

Write a sql to print only character form the below string. @So&*CIE%$TE@GEN!@RAL

Societe Generale,

1 3619

1. Which is an aggregate function? a. Union b. like c. max d. Rank

Fintellix,

1 3036

2. Select A.A from ( select 1 as from dual Union select 1 as from dual)A Full outer join ( select 1 B from dual Union select 2 B from dual)B On A.A=B.B

Fintellix,

2 8691

3. Select sum(a) sum_1,max(a) max_1 ,count(a) count_1 from ( ( select 1 a from dual union all Select to_number(‘2011’) a from dual union all select 1 a from dual) union select 2 b from dual);

Fintellix,

1 3134

4. Select sum(A.salary) +sum(B.salary) as TOT_SAL from ( select LEVEL emp_id,level*100 salary,case when mod (level,2)=0then 2 else null end dept_id from dual connect by level<6 )A right outer join (select level emp_id ,level*200 salary ,case when mod (level,3)=0 then 2 else null end dept_id from dual connect by level<6)B On A.dept_id=B.dept_id And A.emp_id=B.emp-id;

Fintellix,

1 2716

7. Where would you look for errors from the database design?

Fintellix,

1 3030

Whis is not false in primary key?

Fintellix,

1455

What is Histogram?

NIIT,

1558

I have following column in the table. col1 1 a b c 2 3 d and I want to display it as num chars 1 a 2 b 3 c 4 d numbers in one column and letters in another column.

IBM, Saama Tech,

1 3084

How we get all_group_function's(Sum,avg,count,max and min_value of a column(Sal) Using pl/sql anonymous block, with out using group function's. You shouldn't use more than one select statement in entire the program. Like cursor c is select * from ; except this you can't use another select statement. You can use no of variables as per requirement.

1 2508

i have a column which may contain this kind of value: 123*67_80,12*8889_5,34*8_874 ,12*7_7 (can contain space before a comma, and this string length can be anything) now i want to split this value into two column like: column1: 123*67,12*8889,34*8,12*7 column2: 80,5,874,7 use function for this

1582

What are local and global Indexes and where they are useful.

1443

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Un-Answered Questions { SQL PLSQL }

Are stored procedures faster than queries?

948

How many sql statements are used? Define them.

1038

What are the advantages of pl sql?

1122

How do I audit the sql sent to the server?

1010

How we can update the view?

1049

What is sql deadlock?

1142

What is the basic structure of an sql?

1098

what is bdb (berkeleydb)? : Sql dba

1034

What are the differences between implicit and explicit cursors?

1068

what is the difference between myisam static and myisam dynamic? : Sql dba

1065

What is input buffer in sql*plus?

1222

Is pl sql useful?

993

How do you copy a table in sql?

1069

What is the starting oracle error number? What is meant by forward declaration in functions?

994

what are the different functions in sorting an array? : Sql dba

1018

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