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Databases Interview Questions
Questions Answers Views Company eMail

REGULAR CLASSES for Informatica 8.6 is starting from Monday, 07th Nov, 8:00 AM IST .

1 4172

what do u mean by heptic shedule over india

1 3715

in how many ways we can use count()

2 3848

what are the limitations of parameters in a storedprocedure

1 3968

i have three table 1. student (stuid,name) 2. subject (subid,sname,studid) 3. marks (subid,studentid,marks) i want the reslut of how as got max marks in each subject sudentname,max(marks), name abc,70,nikitha

CMC,

1 4006

Which index created when Create Index on table(col), Why

CGI,

2 6110

last function used in MS Access to convert sql what function will use in sql

Cap Gemini,

2114

WHAT IS ecc 6.0

2205

I have the table like this S.No Name ID 01 Xyz 123 I want the result as 01Xyz123 How to write the query to retrieve the entire row data in a single column?

1 4827

How will you debug your procedure? If your procedure is around 2000 lines and the expected output is 10 and we get only output 5.So how will you debug it? Somebody pls give the correct answer?

Fidelity,

2 12716

Table1: Col1 col2 1 2 10 3 4 89 5 6 Table:2 Col1 col2 3 2 9 5 4 7 6 87 With the help of table1 and table2 write a query to simulate the fallowing results. Output1: Col1 col2 1 2 2 3 3 4 4 5 5 6 Output2: Col1 col2 2 3 10 4 5 89 6 7 1.Write query for single row to multiple row using sql statements. Eg:a,b,c,d,e,f Change to A B C D E F 2. Write query for multiple row to single row using sql statements. Eg2 A B C D E F Change to Eg:a,b,c,d,e,f Table1: Col1 col2 8 5 2 9 4 2 5 1.Write a query to select all the rows from a table1,if the value of A is null then corresponding B’s value should be printed in A’s value.if the value of A is null in that table then corresponding B’s value should be printed as 30. 2. write a query to find the sum of A and B .display the max among both. 3.write a query to find total number of rows from table 1. Note: if any column value is null in a row then that row should be considered as 2 rows. 4.write a query to display all the records of table1 except A containg 2 as well B containg 5. 5.rewrite the fallowing without using join and group by. Select b.title,max(bc.returneddate –bc.checkoutdate)” mostdaysout” From bookshelf_checkout bc, Book shelf B Where bc.title(+)=b.title Group by b.title. 6.rewrite fallowing query Select id_category from category_master X where exists (select 1 from sub_category Y where X.id_category=Y.id_category) Customer: Name phone1 phone2 phone3 bitwise A 23456 67890 12345 --- B 67459 89760 37689 --- Don’t_call Col1 67890 37689 1.q) update the customer table of bitwise with 1 or 0. Exists in don’t_call table menas show -1 Other wise -0. Output. Name bitwise A 010 B 010

Protech,

2465

How to move the data from one flatfile to multiple staging tables?give me some examples? for example in po interface one flat file is there and multiple staging tables are there how can move it?please give me answer for this question?

Cap Gemini,

2458

How to update the simple views?give me example?if the table having 100 records and created a view on this table. if i can update the table then how to update the views

Cap Gemini, Syntel,

2 6852

how can we add a field to the oracle standard forms through Form Persanlization or custom.pll

TCS,

2466

how can we send a concurrent program output to the clients through mail or fax give me example.

Cap Gemini,

1 5934


Un-Answered Questions { Databases }

what is spatial nonclustered index

1042


Mention what are the different types of ssrs reports?

158


Is postgres is free?

854


Describe the types of keys?

1185


how to increment dates by 1 in mysql? : Sql dba

1034


How to select the Nth maximum salary from Table Emp in Oracle SQL Plus ?

1149


How do I install only the client tools of sql server 2000?

1129


What are properties of the transaction?

1046


What command do we use to rename a db, a table and a column?

983


What are the basic functions for master, msdb, model, tempdb databases?

1097


Does anyone still use microsoft access?

969


What is accounting access?

879


You have taken a manual backup of a datafile using os. How rman will know about it?

593


Why normalisation is required?

1014


How do I show all mysql databases?

1023