BC030_ ABAP Dictionary Tables in Relational Databases

BC030_ Objectives The participants will be able to: –Describe the different types of tables in the SAP ABAP Dictionary –Explain the technical settings for optimizing the storage and maintenance requirements –Describe indexing performance benefits

BC030_ SAP Table Types Transparent Table (TRANSP) Structure (INTTAB) Pool TableCluster Table View

BC030_ Transparent Tables Type = TRANSP Master Data

BC030_ Table Type TRANSP in the Database DB PROFILE

BC030_ Mapping a Table of Type INTTAB DB x PROFILE

BC030_ Pool and Cluster Tables: Overview Pool Table Cluster Table

BC030_ Master Transaction Organization & Customizing User Technical Settings Data class Number of data records in Database storage Single records, generic, full, not buffered On or off Size category Buffering Log data changes

BC030_ Master dataUser data Data Class Organization and Customizing data Transaction data DB

BC030_ Size Categories

BC030_ Buffering Type None Single RecordGenericFull KF1 KF2 KF3 F4 F5 F6

BC030_ Logging

BC030_ Maintaining Technical Settings Data Class Size Category Buffering Type Logging

BC030_ ABAP Dictionary DB Database Utility

BC030_ Index

BC030_ IndexTable Last NameFirst NamePointer AdamsAnthony IDLast NameFirst NameSalary ZelkovaZephyr Employee Names Employees Database Indexes Burrows Jones Furia Peters Treske Gregory Gerry Fred Tim Jimmy Beth Carolin

BC030_ The Telephone Book Analogy

BC030_ The Telephone Book Analogy (Continued)

BC030_ The Index Range Scan

BC030_ The Unique Index Scan

BC030_ Evaluating the Various Types of Scans Unique Index Scan Index Range Scan Full Table Scan

BC030_ Summary The participants should be able to: –Describe the different types of tables in the SAP ABAP Dictionary –Explain the technical settings for optimizing the storage and maintenance requirements –Describe indexing performance benefits