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 4859

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 3617

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

Fintellix,

1 3035

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 2714

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

Fintellix,

1 3029

Whis is not false in primary key?

Fintellix,

1454

What is Histogram?

NIIT,

1557

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 3083

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 2505

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

1581

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

1442

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Un-Answered Questions { SQL PLSQL }

can a stored procedure call itself or recursive stored procedure? How much level sp nesting is possible? : Sql dba

993

explain the difference between bool, tinyint and bit. : Sql dba

997

Which are the different case manipulation functions in sql?

1023

Can you do multiple joins in sql?

1050

Explain the types of joins in sql?

1034

What are all the different normalizations?

1032

how to enter numeric values as hex numbers? : Sql dba

1064

How do you modify a trigger?

926

What is the use of prepared statement?

1017

Which sql statement is used to delete data from a database?

956

How do I run a script in sql developer?

946

What is exception? What are the types of exceptions?

1073

Describe different types of general function used in sql?

1037

What are the two types of exceptions in pl/sql?

1052

Advantages and disadvantages of stored procedure?

1122

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