SAS Base Software is a versatile system designed for data access, management, and reporting, employing a user-friendly interface and programming capabilities that facilitate quick results. It is utilized across various industries, including IT, healthcare, and finance, due to its security features and ability to create reports in multiple formats. The software includes tools for debugging and managing data steps, optimizing the efficiency and effectiveness of data handling.

1. INTRODUCTION TO
SAS BASE
Software and
How it workBY

2. What is SAS?
A system that delivers the output in a variety of easy-to-access formats, like as SAS data sets,
procedure output files, or HTML. Using Macros makes coding in Base SAS. SAS windowing
environment. Interactive, graphical user interface that enables you can easily run SAS and
test your SAS programs. SAS base code is much easier in case the logic of code is very
complex.
A flexible, extensible 4GL and web-based interface for data access, transformation and
reporting
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3. Who uses SAS?
SAS Environment is specially design for Data Accessing, transfer information and Reporting.
SAS is including in programming language for data manipulation retrieving and storing the
information, descriptive statistics and report writing.
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All of the Companies that are using SAS,
such as – Computer Software,
information technology and services,
Pharmaceuticals, Agriculture, Hospitals
and Health Care, Banking Finance
sectors, Insurance companies, Staffing
and Recruiting, For Higher Educational
purpose and Management consulting.

4. Benefits of SAS Base
■ Make programming fast and easy.
■ It access industry-standard data security. You can encrypt the SAS data on disks, and
increase security for stored passwords.
■ It combines SAS and Hadoop.You can submit the hdfs commands, MapReduce programs
and Pig language programs from SAS.
■ Increase your computer resources. It improves the performance and security.
■ Easily create reports in standard office format such as rtfs, pdfs, Microsoft PowerPoint,
Html and E-book Format and deliver easily to mobile devices.
■ Programmers can read, format, analyze and the report on data quickly.
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5. Work of SAS Base Software
SAS Base Software is the core of the SAS System.
■ Data Step :
The programming language that use to manipulate and manage your SAS Data.
■ SAS Environment :
It is an interactive and graphical user interface that enables you to easily run SAS and test
your SAS programs.
■ SAS Procedures :
SAS procedures offer users with a unique ability to generate quick results – requiring little, if
any, programming skills. In SAS Procedure some software tools for data analysis and
reporting.
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6. Work of SAS Base Software
■ Data Step Debugger :
It is a programming tool that helps you find logic problems. DATA step programs - When
you submit a data step with the Debugging option Then SAS compiling starts, it displays the
debugger windows, and pauses until you enter a debugger command is to begin execution.
You can debug only one Data step at a time. You can use the debugger only with a DATA
step, and not with the procedure step.
■ Micro facility :
It is a powerful programming tool for extending and customize SAS software programs
and for reducing text in your programs.
■ SAS windowing environment:
It is an interactive with graphical user interface that enables you to easily run SAS
and test your SAS programs. You can edit and execute programming statement.
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7. How the Data steps work for SAS?
■ The DATA Step statement begins with the process of building the SAS data set and
names the data set. The statements that make the data step compiled and execute.
■ If the syntax is check hen the data step are compiled. If the syntax is correct then the data
step are executed. A loop of DATA steps is an automatic output and return action.
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8. Flow of Data step
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Compiles
Syntax Checking
Creates
Input buffer
Begins
Data Statement
Sets
Program Data vector
Data
Read
Read
Input record
Execute
Statements
Writes
SAS data set
Returns
Data step
Yes
No
Close
Data Set;
Compilation Phase?
After you submit the DATA step for
execution process, then SAS checks
the syntax of the SAS statements and
compiled, that mean it automatically
translating the statements into machine
code.

9. How To Processing the SAS Code:
■ Create (input buffer):
Input buffer is a logical area in memory into which SAS reads each record of data from a raw data file when the program
executes.
■ Sets (program data vector):
It is builds the SAS data set, and one observation at a time. When a program executes, SAS reads data values from the
input buffer. It mean by creates them by executing SAS language statements. SAS assigns the values to the appropriate
variables in the program data vector. From here, SAS writes the values to a SAS data set as a single observation.
SAS reads a record into the input buffer. SAS then reads the values in the input buffer and assigns in the program data
vector. It also calculates the values for variables. The SAS program loops back to the top of the DATA step.
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Compilation Phase
Compilation Phase

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