Database Concepts
The SAP system contains many types of constructs and structures within the R/3 (or other SAP component) Data Dictionary (DDIC). The majority of these constructs tend to get very technical. I will however provide an overview of many of these constructs and related concepts later in Hour 17, “ABAP Data Dictionary and Repository.” The topics discussed next give you an idea of how different elements of the database are usually designed with the end result of increased performance and system scalability in mind.
Database Indexes
Database indexes are used to speed up the retrieval of data from tables (see Figure 3.7). An index might best be described as a copy of a database table reduced to only the key fields. The data in this ...
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