SAP ABAP Dictionary Concepts
What do you mean by Data Dictionary? •
A data dictionary can be seen as an independent surface for a database
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In other words, a data dictionary can also be defined as a virtual directory containing data about data
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Moreover, a data dictionary also consists of tools that lets you perform tasks, such as data manipulation and data processing
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Also referred to as DDIC or ABAP Dictionary
ABAP Dictionary
ABAP Dictionary Functionality
ABAP Dictionary Objects •
Domains
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Tables
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Views
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Type Groups
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Lock Objects
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Search Help
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Data Types
Table Types in SAP ABAP
Transparent Cluster Pool
Elementary ABAP Dictionary Data Types Type
Name
C
Text (Character)
N
Numeric Text
D
Date (DDMMYYYY)
T
Time (HHMMSS)
X
Hexadecimal
I
Integer
P
Packed Number
F
Floating Point Number
ABAP Dictionary Data Element •
Elements provide descriptions of the table fields
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Pre-defined data elements – LIFNR – KUNNR – MATNR – CLNT
System Fields •
All system data is stored in the system table named as syst
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The syst table comprises of following fields – Sy-datum: System date – Sy-langu: System language – Sy-subrc: System check – Sy-uzeit: System time
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