7251195-SAS-Interview-Questions

7251195-SAS-Interview-Questions - OCEAN TECHNOLOGIES ABOVE...

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OCEAN TECHNOLOGIES ABOVE CITI FINANCIAL BANK NEAR KARUR VYSYA BANK S.R.NAGAR, HYDERABAD. PH: 040-64513546, 9247877933 SAS interview Questions and Answers 1) Which date functions advances a date time or date/time value by a given interval? A) INTNX. 2) How we can call macros with in data step? A) We can call the macro with CALLSYMPUT 3) In the flow of DATA step processing, what is the first action in a typical DATA Step? A) When you submit a DATA step, SAS processes the DATA step and then creates a new SAS data set.( creation of input buffer and PDV)Compilation PhaseExecution Phase 4) How do u identify a macro variable A) Ampersand (&) 5) What are SAS/ACCESS and SAS/CONNECT? A) SAS/Access only process through the databases like Oracle, SQL- server, Ms-Access etc. SAS/Connect only use Server connection. 6) How could you generate test data with no input data? 7) What is the one statement to set the criteria of data that can be coded in any step? A) OPTIONS Statement, Label statement, Keep / Drop statements 8) What is the purpose of using the N=PS option? A) The N=PS option creates a buffer in memory which is large enough to store PAGESIZE (PS) lines and enables a page to be formatted randomly prior to it being printed. 9) What are the scrubbing procedures in SAS? A) Proc Sort with nodupkey option, because it will eliminate the duplicate values. 10) What are the new features included in the new version of SAS i.e., SAS9.1.3? The main advantage of version 9 is faster execution of applications and centralized access of data and support.
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11) WHAT DIFFERRENCE DID YOU FIND AMONG VERSION 6 8 AND 9 OF SAS. 12) What are the advantages of using SAS in clinical data management? Why should not we use other software products in managing clinical data? ADVANTAGES OF USING A SAS®-BASED SYSTEM Less hardware is required . A Typical SAS®-based system can utilize a standard file server to store its databases and does not require one or more dedicated servers to handle the application load. PC SAS® can easily be used to handle processing, while data access is left to the file server. Additionally, as presented later in this paper, it is possible to use the SAS® product SAS®/Share to provide a dedicated server to handle data transactions. Fewer personnel are required . Systems that use complicated database software often require the hiring of one ore more DBA’s (Database Administrators) who make sure the database software is running, make changes to the structure of the database, etc. These individuals often require special training or background experience in the particular database application being used, typically Oracle. Additionally, consultants are often required to set up the system and/or studies since dedicated servers and specific expertise requirements often complicate the process.
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