SAP Beginners

ABAP ARCITECTURE environments communicate directly via the SAP Java Connector (JCo). AS ABAP Architecture In AS ABAP, the central instance is distinguished by the fact that the message server and the enqueue work process run there. All other instances of the system are usually called dialog instances. Alternatively, the instances are also named after the services provided. The services that an application server can provide are determined by the type of work processes it has. An application server can then take on several roles, for example, as a dialog server and simultaneously as an update server, if it provides several dialog work processes and at least one update work process. Note: An overview of the AS ABAP instances is available in SM51 (in SAP Easy Access under Tools → Administration → Monitor → System Monitoring→ Servers. You can use the transaction SM50 to display an overview of the work processes on the instance that you are logged on to; you can also display this over

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Tutorial setup Ensure you have access to a RDBMS; contact your system administrator for assistance. To set up your computer for this tutorial you must do the following tasks: • Create repository, source, and target databases on an existing RDBMS • Install SAP BusinessObjects Data Services • Run the provided SQL scripts to create sample source and target tables The following sections describe each of these tasks. Create repository, source, and target databases on an existing RDBMS To create the databases 1. Log in to your RDBMS. 2. (Oracle only). Optionally create a service name alias. Set the protocol to TCP/IP and enter a service name; for example, training.sap. This can act as your connection name. 3. Create three databases—for your repository, source operational data store (ODS), and target. For each, you must create a user account and password. The recommended values used in the tutorial SQL scripts are: 16 SAP BusinessObjects Data Services Tutorial Introducti

Creating a Program To begin creating a program, access the ABAP Editor either via transaction code SE38, or by navigating the SAP menu tree to Tools  ABAP Workbench  Development, in which the ABAP Editor is found. Double-click to execute. A note to begin: it is advisable to keep the programs created as simple as possible. Do not make them any more complicated than is necessary. This way, when a program is passed on to another developer to work with, fix bugs and so on, it will be far easier for them to understand. Add as many comments as possible to the code, to make it simpler for anyone who comes to it later to understand what a program is doing, and the flow of the logic as it is executed. The program name must adhere to the customer naming conventions, meaning that here it must begin with the letter Z. In continuation of the example from the previous chapter, in this instance the program will be titled ‘Z_Employee_List_01’, which should be typed into the ‘Program’

3. History of ABAP ABAP is a proprietary programming language of SAP and ABAP stands for “Advanced Business Application Programming”. Originally, known as Allgemeiner Berichts-Aufbereitungs-Prozessor, German for general report creation processor ABAP is a 4th Generation Programming Language and was first developed in 1980s. By 1990s most of SAP’s application software and systems were written in ABAP. In 1999 ABAP was extended to include Object Oriented Programming. SAP’s most recent development is on ABAP as well as JAVA platform. Attributes and Prerequisites: • The language is fairly easy to learn for programmers but it is not easy for use by nonprogrammers. • Knowledge of relational database design and preferably also of object-oriented concepts is necessary to create ABAP programs. • The ABAP programming language allows SAP customers to enhance SAP application programs – customers can develop custom reports and interfaces with ABAP programming. •

2. SAP Overview and Navigation a. Login On: http://www.learnsap.com When logging on to an SAP system, you will be prompted to enter the user and password. You also have the option of specifying a client when logging on; the client field usually already contains an appropriate default value, you can also select a logon language supported by that system. SAP systems can support a large number of languages, the minimum being English and German language. Password • The initial password is provided by system administrator • Password is case sensitive • System prompts for new password in a dialog box • Click on “Enter” after reconfirming the new password. On changing the password, the copyright information appears when you login for the first time, click on enter key here and you will be logged in the SAP System. www.LearnSAP.com ABAP Ver: ECC 6.0 Page: 7 A SAP screen has following standard layout: Menu bar: The Menu bar is the top line of any dialog window in the