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ABAP-1 - Introduction to ABAP/4 Development Environment SAP...

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Introduction to ABAP/4
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Development Environment SAP R/3 Basis Client/Server Environment R/3 Architecture Application Server Architecture Data Support
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R/3 R/3 is runtime environment Integrated suit of application programs Written in SAP’s 4GL – ABAP/4 R/3 is the system in which ABAP/4 programs will run
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MM SD FI PP ABAP/4 BASIS OPERATING SYSTEM
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R/3 package Comes prepackaged with the core business applications – needed by most large corporations Applications coexist in one homogenous environment Uses single database – with very large set of tables
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Std – R/3 product comes with - Database size – 12 gigabytes to 3 terabytes Around 8,000 tables
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R/3 system Conceptual Areas Basis area Application area Development workbench
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Basis Area Basis is like an operating system for R/3 Sits between ABAP/4 code and computer Operating System ABAP/4 cannot run directly on OS Basis – is a set of programs that loads, interprets and buffers its input and output Basis is to ABAP/4 programs as Windows is to windows programs
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Basis Provides runtime environment for ABAP/4 programs Basis is a collection of R/3 system programs that provides interface ABAP programs use basis functions to perform file I/O and display data in windows Basis makes ABAP/4 programs portable
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SAP provides a set of tools for administering the Basis system They perform following tasks – performance monitor, configuration, system maintenance
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R/3 System architecture R/3 system architecture is 3-tier architecture Components Presentation server Application server Database Server
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PS PS AS AS DBS DB Presentation Servers Application Servers Database Servers Database
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