SAP ABAP Data Element TTYPKEYDEF (Key Definition for Table Types)
Hierarchy
☛ SAP_BASIS (Software Component) SAP Basis Component
   ⤷ BC-DWB-DIC-AC (Application Component) Activation Program, Conversion Program, DB Utility, MC, SPDD
     ⤷ SDTT (Package) DD: Table types
Basic Data
Data Element TTYPKEYDEF
Short Description Key Definition for Table Types  
Data Type
Category of Dictionary Type D   Domain
Type of Object Referenced     No Information
Domain / Name of Reference Type TTYPKEYDEF    
Data Type CHAR   Character String 
Length 1    
Decimal Places 0    
Output Length 1    
Value Table      
Further Characteristics
Search Help: Name    
Search Help: Parameters    
Parameter ID   
Default Component name    
Change document    
No Input History    
Basic direction is set to LTR    
No BIDI Filtering    
Field Label
  Length  Field Label  
Short 0   
Medium 18 Key (Coded) 
Long 20 Key Definition 
Heading 1 K 
Documentation

Definition

For table types, the following keys are allowed:

  • Key components
    Components of the line type are specified explicitly as key components (explicit key specification).
  • Line Type
    The line type of the table is used as key. This definition makes sense, particularly for tables without a structure, since no key components can be defined for them. Access to the table row of a table without a structure is possible in the ABAP program with the pseudo component TABLE_LINE.
  • Standard key
    The structure of the key depends on the category of the row type. For a structured row type, the standard key consists of all the character-like components of the table row. In an elementary row type or reference type as row type, the standard key consists of the entire table row. The standard key is empty for a table type as row type.
    Remember that an empty key is only allowed for the Standard Table access type.
  • Not specified
    With this setting, it is possibleto define a generic table type.

History
Last changed by/on SAP  20010130 
SAP Release Created in