Answer / sibin

Use
1.WHERE Condition
2.DROP KEEP in Set Statement
3.ARRAY
4.Mutually Exclusive Conditions like DO ,DO UNTIL,DO WHILE

Answer / pricil kurian

1) Compressing dataset
2) Using where instead of if as subsetting conditions
3) Deleting the temporary datasets at the end of the program
4) If we use "if..else ..if conditions"..use most occuring
situations first
5)Use keep and drop appropriately to avoid the unneceesary
variable
6).Creattion of index variable
7)Use of array statement
8)Create one byte required numeric variable which we don't
use for calcualting process as charcater..Using this this
variable need 1 byte where numeric variable's minimum
length is 3.
9)Minimize the CPU time that SAS uses by executing the
minimum number of statements in the most efficient
order.
10)Use SQL for code simplification. A single SQL statement
is generally easier to code and understand than a
long series of SORT and DATA steps.
11)Use of data _null_; when we don't need to output into a
new dataset.
12)Use macros for redundant code.
13)When data sets are large and unsorted, the SQL inner
join may beter than SORT and MERGE.

Answer / koduri

Using Arrays .

Answer / solasa

for large datasets we use proc sql joins

Answer / vicky

1.we can compress the dataset

2.if we wana do merge a bigdate set with another dataset
having few variables for instance a fact with dimension
having key variable and description column
in this case sorting n merging this bigdateset(fact) with
dimension apply formats.so dat u can avoid sort n merge.

Answer / dvsr

1)compress the datasets

2)use DROP KEEP options while creating temp data sets

3)Index creation on the Frequently using variables

What do the put and input function do?

0 Answers  

what is PhaseIII, ODS, TLG, Macro and Proc in SAS

0 Answers  

how do u test a pros sql(works or not) without executing it?

1 Answers   DELL, HSBC,

I have 50 variables in one data set, In reports i want to generate every 10 variables in one page how we will write code in proc report.

4 Answers  

what has been your most common programming mistake? : Sas programming

0 Answers  

How do you debug and test your SAS programs?

0 Answers   Quintiles,

How to convert .xls file into CSV format?

6 Answers   Quintiles,

Explain the difference between using drop = data set option in set and data statement?

0 Answers  

Identify statements whose placement in the DATA step is critical.

6 Answers   Accenture, Labasol,

do you prefer proc report or proc tabulate? Why? : Sas programming

0 Answers  

What are TEAEs

2 Answers   Accenture, Quintiles,

What are the joins,types of joins and thier functions?

7 Answers   SAS,