Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...


Let?s say you have 100,000 records and you want to delete
95,000 at a time and keep only 5 thousand. But in local
memory you don?t have enough space for 95,000 records. What
do you do in this case? How do you delete without any
problem with time and performance?

Answers were Sorted based on User's Feedback



Let?s say you have 100,000 records and you want to delete 95,000 at a time and keep only 5 thousand..

Answer / manjeet

First select the 5000 records u want to keep.. put it in
memory.. then delete the entire table.. and then put this
5000 record table in place

Is This Answer Correct ?    8 Yes 1 No

Let?s say you have 100,000 records and you want to delete 95,000 at a time and keep only 5 thousand..

Answer / pankaj gupta

First create a table using select statement with 5000 records u want to keep.. put it in memory.. then drop/truncate (not delete, that is the basic problem) the entire table.. and then put this 5000 record table in place

Is This Answer Correct ?    2 Yes 0 No

Let?s say you have 100,000 records and you want to delete 95,000 at a time and keep only 5 thousand..

Answer / java

Do the batch delete.
ie Delete the set of records in loop and commit the transaction

Is This Answer Correct ?    1 Yes 0 No

Post New Answer

More Database Management Interview Questions

What are the objectives of rdbms?

0 Answers  


What is database schema in dbms?

0 Answers  


What is an extensible database?

0 Answers  


What are the 5 databases?

0 Answers  


How to use events with zebedee, ssh or stunnel?

0 Answers  


What is a distributed database system?

0 Answers  


Where the data file for system Tablespace is located? What is its name, initial size and maxsize?

1 Answers  


when All datafiles related to a Tablespace are removed ?

0 Answers  


What are the two major subsystems of system r?

0 Answers  


What do you understand by ‘atomicity’ and ‘aggregation’?

0 Answers  


What is procedure in database?

0 Answers  


What is a checkpoint in dbms?

0 Answers  


Categories