02_ABAP Dictionary Objects

8/6/2019 02_ABAP Dictionary Objects

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ABAP Dictionary ObjectsBC030_03.1

ABAP Dictionary Objects

Tables

Data Elements

Domains

Using a Table in an ABAP Program


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Accessing the ABAP Dictionary


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Basic Objects of the ABAPData Dictionary

Table CTable BTable A

Data Element 1 Data Element 2

DomainDomain


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Tables

TABLE KNA1TABLE KNA1(Customers)(Customers)

Name 1 ORT 02MANDT KUNNRTable: KNA1Table: KNA1


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Create a Table

Enter a description (short text).

Maintain delivery class

Table Maintenance attributes


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Create a Table

Maintain field attributes


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Two-Level Domain Concept

Data Element 1 Data Element 2

DomainDomain


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Data Elements

Table BTable A

Data Element 1


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Pre-Defined Data Elements


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Data Element Documentation


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Create Data Element


Enter domain name.


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Create Data Element

Maintain field labels and column headers.


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Domains

Table ATable A

Data ElementsData Elements

DomainDomain


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Characteristics of Domains

Table ATable A

Data ElementsData Elements

DomainDomain


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Allowed Values

Value Table

DomainDomain DomainDomain

January

February

March.......

December


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validvalues

invalidvalues

Benefits of Using Allowed Values


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Create a Domain


Enter data type and length.


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Create a Domain

Explicit values or a value

table may be entered.


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Using a Table in Program Code

TABLES: YEMPLOY.

SELECT *FROM YEMPLOY.

WRITE: / YEMPLOY_IDYEMPLOY_NAME

YEMPLOY_SALARY

ENDSELECT.


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Foreign Key Relationships

Definition & Uses of Foreign Keys

Prerequisites for Constructing Foreign Key Relationships

Key Terminology

Cardinality and Foreign Key Field Types

Foreign Keys with Multiple Fields


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Definition ofForeign Keys


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Uses ofForeign Keys

Maintain data integrity

Provide help texts

Create aggregate dictionary objects


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Prerequisites forConstructingForeign Key Relationships

The foreign key field and the primary key of the checktable must share the same domain.

A value table must exist for that domain.


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Check TableCheck Table

Value TableValue Table

Foreign Keys: KeyTerminology

Foreign Key TableForeign Key Table


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CheckTable ValueTable

Foreign KeyTerminology:CheckTable = Value Table


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Foreign KeyTerminology:CheckTable { Value Table

Check

Table

Value

Table


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Establishing a Foreign KeyRelationship in the ABAP Dictionary


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Cardinality

nn :: mm1

C

1

C

N

CN


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Foreign KeyType:KeyFields or KeyField

Candidates

Faculty Course


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Foreign KeyType:KeyFields of a TextTable

T005(Country Codes)

(T002)(Language Codes)

T005T(Country descriptions)


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Foreign KeyType:Non-KeyFieldCandidates

Course

Professor


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Creating a Foreign Key Relationship

Foreign key push-button


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Maintaining a Foreign KeyRelationships Attributes

Check table(defaults tovalue table)


Maintain cardinality n : m

Maintain foreignkey type


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Foreign Keys with Multiple Fields


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Check TableCheck Table

Field-By-Field Assignment

Foreign Key TableForeign Key Table


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PartialForeign Keys


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ConstantForeign Keys


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Changing the Field Assignment

Generic foreign keyGeneric foreign key

Constant foreign keyConstant foreign key


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ABAP DictionaryTablesin Relational Databases

SAP Table Types

Technical Settings

Indexes


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SAPTable Types

Transparent

Table(TRANSP) Structure (INTTAB)

Pool Table Cluster Table

View


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TransparentTablesType = TRANSP

Master DataMaster Data


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Table Types TRANSPin the Database

DB

PROFILE


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Mapping a Table ofType INTTAB

DB

PROFILE


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Pool andClusterTables:Overview

Pool Table ClusterTableClusterTable


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MasterTransactionOrganization &

Customizing User

TechnicalSettings

Data class

Number of data records inDB storage

Single records, generic,full, not buffered

on or off

Size category

Buffering

Log data changes


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Master data User data

Data Class

Organization andCustomizing data

Transaction data

DB


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Size Categories


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BufferingType

None

Single Record Generic

Full

KF1 KF2 KF3 F4 F5 F6 KF1 KF2 KF3 F4 F5 F6

KF1 KF2 KF3 F4 F5 F6


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Logging


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MaintainingTechnicalSettings


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Index


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DB

Database Utility


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ABAP RepositoryInformation System

The Repository Information System

Object Searches (Find)

Use of Objects in Objects (Where-Used)

Searching for Objects Outside the Dictionary


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ABAPABAPDictionaryDictionary

Find (Object Search)Find (Object Search)

Find all objects ofFind all objects oftype A withtype A with

attributes X, Y, Z.attributes X, Y, Z.

WhereWhere--used listsused lists

Find all objects ofFind all objects oftype A that usetype A that use

object Bobject B

ABAP Repository Info System:Typical Queries


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ABAP Repository: InitialScreen


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Find: Selection Screen

Enter a singleEnter a singlevalue forvalue for

the searchthe searchattributes orattributes or

use the arrowuse the arrowpushpush--buttonsbuttonsfor selectionfor selection

optionsoptions

Use the All SelectionsUse the All Selectionspushbutton to limit search criteriapushbutton to limit search criteria

on other object attributeson other object attributes


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Selection Options

Simplified Selection (single values)

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02_ABAP Dictionary Objects