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Databases Interview Questions
Questions Answers Views Company eMail

Can somebody helps me to arrange these into ascending order depending on their sizes: 1)OLTP 2)ODS 3)DWH 4)DATA MART

Wipro,

2 6152

What is the maximum number of triggers,can apply to a single table?

 2 9029

What packages(if any) has oracle provided for use by developers?

 2 5954

What's dateware house and what's clustor with practicle example

 1 2297

what's query optimization and without use of IN AND Exist can we get another way data from query

 1 2249

What is tablespace in oracle? how can we create? how is it manage? . . . Thnx 2 All in Advnc....:)

 3 5476

Simple example for difference between select and cursor in sql

 1 4745

can we drop dual table

Metric Stream,

7 16599

25.67,-1 Trunc = 20 Round= 30 HOW????

Karrox,

2 7895

I want to make a query where I want to eliminate the duplicate rows from the table. For example : Input : Table : NAME Column1 Column2 India USA USA India UK India India UK The desired output that I want to eliminate the duplicates Output India USA UK India Thanks

Sun Life,

2 5437

i have a customer table. trans_id trans_date trans_amt debit_credit_indicator 001 01-JAN-13 1099 cr 001 12-JAN-13 500 db 002 24-FEB-13 400 db 002 23-MAR-13 345 cr 001 18-APR-13 800 cr 002 15-MAR-13 600 db 001 12-FEB-13 200 cr i want like this output. trans_id trans_amt debit_credit_indicator i want get highest credit amount and lowest credit amount and highest debit amount and lowest debit amount for each trans_id.

Oracle,

2 6400

trans_id trans_date trans_amt debit_credit_indicator 001 01-JAN-13 1099 cr 001 12-JAN-13 500 db 002 24-FEB-13 400 db 002 23-MAR-13 345 cr 001 18-APR-13 800 cr 002 15-MAR-13 600 db 001 12-FEB-13 200 cr i want like this output trans_id trans_date trans_amt debit_credit_indicator 001 JAN 1599 cr no.of trans 2 i want trans_id and trans_date like 'JAN' or 'FEB' etc, trans_amt i want all credit amount - debit amount per each trans_id. and debit_credit_indicator and no.of transactions in a month.

Oracle,

1 5518

I Have A Table Like This. Cityno Cityname Mails 1 Bangalore 8km 2 Hsr Layout 20km 3 Mejistic 30km 4 Jayadeva 55km 5 Itpl 80km 6 Hebbal 115km I Have Data Like This I Want O/p Like This Distance No.ofcity 0-50km 3 51-100km 2 101-150km 4 And So On

DELL, HCL, Oracle,

6 13662

i have a customer table. trans_id trans_date trans_amt debit_credit_indicator 001 01-JAN-13 1099 cr 001 12-JAN-13 500 db 002 24-FEB-13 400 db 002 23-MAR-13 345 cr 001 18-APR-13 800 cr 002 15-MAR-13 600 db 001 12-FEB-13 200 cr i want like this output. trans_id trans_amt debit_credit_indicator i want get highest credit amount and lowest credit amount and highest debit amount and lowest debit amount for each trans_id. pls give me answer. i want urgent

3 6320

i have a table like this. cityno cityname mails 1 BANGALORE 8KM 2 HSR LAYOUT 20KM 3 MEJISTIC 30KM 4 JAYADEVA 55KM 5 ITPL 80KM 6 HEBBAL 115KM I HAVE DATA LIKE THIS I WANT O/P LIKE THIS DISTANCE NO.OFCITY 0-50KM 3 51-100KM 2 101-150KM 4 AND SO ON pls give me answer. i want urgent

 6 9009

Un-Answered Questions { Databases }

Is inner join faster than left join?

1289

How did mongodb get its name?

59

8. Sort, Lookup What kind of technique (partition) is used? 9. How can you handle exceptions in job sequencer? 10. How do you apply custom conditions an exceptions (How do you trigger exceptions in job sequence?) 11. I have a job with 3 possibilities? Finish with ok…..Abort…….Warning} How do you handle these in Job sequencer 12. How do you connect both OK and Warning can we? 13. How to find which process is running currently? 14. How do you find the disk usage in UNIX? 15. How do you combine 2 sequential files having same metadata of same file names? 16. How do you implement SCD in Ds? 17. Explain the situation where you have applied? 18. How do you apply new changes to? 19. Difference between change capture and Change apply? 20. Explain Compare Stage? 21. What is Surrogate key? 22. How to solve the problem of null values?

1917

This question asked during interview, 2) At the end of each month, a new table is created for each bank that contains monthly metrics consolidated at the account level. The table naming convention is bankX_YYYYMM where X represents the numeric designation of the bank and YYYYMM indicates the 4 digit year and 2 digit month. The tables contain the following fields: name data type description account text account number registered boolean indicates whether the account is registered num_trans integer number of transactions made during the time period spend numeric(9,2) total spend during the time period a) Write a SQL query that will display the total number of transactions and total spend for "Bank1" during the 4th quarter of 2009. b) Write a SQL query that will display the total number of transactions and total spend at "Bank1" and "Bank2", broken out by registered vs. non-registered accounts, during January 2010 not sure what is correct answer and how to solve?

2576

Have you written applications to retrieve stored images in a table?

1097

Does group by remove duplicates?

1122

If you're given a raw data table, how would perform etl (extract, transform, load) with sql to obtain the data in a desired format?

1053

Suppose database is running slow, what will you do?

2605

Any work done in oracle workflow builder. Did you customize or build a new workflow?

57

What is oracle latest version?

1183

Re: Where can i get informatica certification Exam dumps and details? please forward it to emailid:

2331

how to start mysql server? : Sql dba

1279

What is the current version of sql?

1106

How do I find the sql server version?

1118

Can we do dml on views?

1044

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