SAS/ACCESS 9.2 for Relational Databases: Reference, Fourth Edition

3CHAPTER1 Overview of SAS/ACCESSInterface to RelationalDatabasesAbout This Document 3Methods for Accessing Relational Database Data 4Selecting a SAS/ACCESS Method 4Methods for Accessing DBMS Tables and Views 4SAS/ACCESS LIBNAME Statement Advantages4SQL Pass-Through Facility Advantages 5SAS/ACCESS Features for Common Tasks 5SAS Views of DBMS Data 6Choosing Your Degree of Numeric Precision 7Factors That Can Cause Calculation Differences 7Examples of Problems That Result in Numeric Imprecision 7Representing Data 7Rounding Data 8Displaying Data 8Selectively Extracting Data 8Your Options When Choosing the Degree of Precision That You Need 9References 10About This DocumentThis document provides conceptual, reference, and usage information for theSAS/ACCESS interface to relational database management systems (DBMSs). Theinformation in this document applies generally to all relational DBMSs thatSAS/ACCESS software supports.Because availability and behavior of SAS/ACCESS features vary from one interfaceto another, you should use the general information in this document with theDBMS-specific information in reference section of this document for your SAS/ACCESSinterface.This document is intended for applications programmers and end users with theseskills:3 They are familiar with the basics of their DBMS and its SQL (Structured QueryLanguage).3 They know how to use their operating environment.3 They can use basic SAS commands and statements.Database administrators might also want to read this document to understand howto implement and administer a specific interface.