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Databases Interview Questions
Questions Answers Views Company eMail

hi friends please answer this question ASAP:- how to count the no. of employee in a each department or no. of employee in each location by using emp/dept table

Indecomm,

7 7157

write a sql query following source looking like below column1 column2 101,102,103 abc,def,ghi 1001,1002,1003 a,b,c i want the output column1 column1 101 abc 102 def 103 ghi 1001 a 1002 b 1003 c

KPIT,

1 4118

write sql query following source are EmpID, Salary 101 1000 102 2000 103 3000 I want the output format like following empid,sal,composite_sal 101 1000 1000 102 2000 3000 103 3000 6000

TCS,

4 6300

what is the diffrence between core dba and apps dba?

Cap Gemini,

2315

Display the order number and the number of months since the order was shipped for all orders that have been shipped in the last year (365 days). (Hint: Unshipped orders will have a null value).

 1 3465

i have xml source. xml source having lacks of records. i want extract/retrive xml source data using sql query. please tell me how to write query.

TCS,

4 7634

how to get last monday of a month?

Multifonds,

2 5872

Explain the statement?? ALTER TABLE TABLE_NAME MOVE; What it the use of above statement??

BirlaSoft,

1 5492

I just want to maintain data like an employee can belongs to 3 or more departments . We can resolve this by using composite key but it avoids normalization rules. So Can anyone tell me how can I maintain data.

IBM,

1925

i have table T!. A B C D NULL 1 2 3 4 NULL 5 6 7 8 NULL 9 10 11 12 NULL. I WANT COUNT OF NULL VALUES IN TABLE. WRITE A QUERY.

iGate, Wipro,

14 20055

write a query to remove duplicate records without using primary key column?

ABCO,

2 8887

What Is The Difference Between Primary Key & Super Key

Accenture,

3 6806

I have a table Events Events containing cardno,time,id,name--each id has a cardno my requirement is every day each employee swipe the card several times i want to calculate first and last time of each card the output should be name 1 2 6 7 in out in out holiday holiday xxx 09:30 06:30 09:40 06:45 where 1,2...... are dates for example january 1,2, etc. 6 and 7 are saturday and sunday how it is posssible

HCL, Wipro,

2017

I have a table emp. There is only one column in the table. In that , there are only three rows in that column. The value in the first row is 'A' and the value in the second row is 'B' and the third row is 'C'. Now, my question is , How will you write a select query to display the output as B C A Note: order by cannot be used coz it gives us output as CBA. But the output should be BCA.

 4 5762

what is d diff between grant,commit,rollback n savepoint

 1 7954

Un-Answered Questions { Databases }

Explain active/passive and active/active cluster configurations?

822

How to provide default values to function parameters?

792

You have two tables with a one to many join based on a field named id. You need to find records in the parent table that are not represented in the child table. how would you accomplish this?

825

What is the difference in accessing db between sql server vs sql azure?

166

How to create hyperlink from returned sql query ?

846

Where do you find the default index fill factor and how to change it? : sql server DBA

809

What are the difference between sql and mongodb? Explain

1

How to load a file into database column?

726

What is forward declaration in pl sql?

777

What are queries in dbms?

692

What is inner join in database?

706

Consider you have a composite index of three columns. Now, you have to provide the value of two columns in the where clause of a select query. Do you think index can be used for the operation?

689

State all possible different index configurations a table can possibly have?

778

What is the difference between bind and lexical parameter?

776

How much does mongodb cost?

1

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