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SQL PLSQL Interview Questions
Questions Answers Views Company eMail

What is AUTH_ID and AUTH_USER in pl/sql ?

INDUS,

1066

----> 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 1731

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

CTS,

1 968

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

Societe Generale,

1 1899

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

Fintellix,

1 1196

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,

1 3082

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 1603

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 1122

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

Fintellix,

1 1423

Whis is not false in primary key?

Fintellix,

499

What is Histogram?

NIIT,

630

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,

1 770

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.

1 637

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

427

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

456


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Un-Answered Questions { SQL PLSQL }

Can we use views in stored procedure?

105


How is a PL/SQL code compiled?

182


What is the purpose of primary key?

113


What is a primary key? Explain

150


What is pl/sql language case sensitive?

163






Explain isolation levels. : Transact sql

143


What are the two types of exceptions.

173


What are three advantages to using sql?

116


Is sql a dbms?

108


write an sql query to get third maximum salary of an employee from a table named employee_table. : Sql dba

142


what are all types of user defined functions? : Sql dba

146


What are aggregate functions in sql?

175


What is sqlite used for?

109


What is fmtonly in sql?

113


What are the usages of sql?

140