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...

what is the need of INDEX in datasets?

Answer Posted / dvsr

Without index if we executed the query it will go to the
full table scan. If any data set or table has the index
first query checks that particular If condition or where
condition in that column then it will go to the remaining
columns.

Is This Answer Correct ?    1 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what are some problems you might encounter in processing missing values? In data steps? Arithmetic? Comparisons? Functions? Classifying data? : Sas programming

1180


Explain the special input delimiters used in sas programming.

966


What are the different versions of sas that you have used until now? : sas-grid-administration

1281


WHAT IS SAS WEB SERVICE and what are the steps to create an xml service ?

2748


how would you create a data set with 1 observation and 30 variables from a data set with 30 observations and 1 variable? : Sas programming

1285


What are the five ways to do a table lookup in sas? : sas-grid-administration

1004


do you need to know if there are any missing values? : Sas programming

996


Explain bmdp procedure?

993


What is the difference between SAS functions and procedures?

1102


what is function of retain statment

1982


How do you delete duplicate observations in sas?

1023


how would you determine the number of missing or nonmissing values in computations? : Sas programming

1097


what is slowly changing dimension? : Sas-di

1075


How to create an external dataset with sas code?

1082


data data1; input dt account; format dt date9.; cards; 1745 1230 1756 1120 1788 1130 1767 1240 ; data data2; input startdt enddt total; format startdt date9. enddt date9.; cards; 1657 1834 12300 1557 1758 16800 1789 1789 12300 1788 1345 12383 1899 1899 13250 ; proc sql; create table data3 as select * from data1 as x left join data2 as y on x.dt>=y.startdt and x.dt<=y.enddt; quit; Here, we are getting cartision product. But,I want left join report consisting of this program. It should not get duplicate values. you can modify the program also.

2168