For business applications, it is necessary to exchange the information with other systems in the same or other systems group. To do this, a mechanism needed to communicate between the SAP systems.
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ABAP programs are written with individual sentences (statements) and each sentence or line of code in the ABAP program is called as ABAP statement. In other words, statement is a combination of keywords, operands, operators, and expressions and so on.
ABAP program is set of processing blocks. Each processing block contains one or more statements. The Syntax of ABAP programming language consists of the following –
Knowing basic screen navigation in ABAP is very important to work easily with transactions. Let us discuss about the basic screen navigations like logon, change password, ABAP editor to code programs and logoff.
Before proceed, let us see some of ABAP guidelines for writing a program.
Elementary types are the smallest individual units of types. Elementary type is a single data type used to define the data. In elementary type, only one data type is used to declare a variable for the data.