SAP AG - Учебные курсы SAP R/3 (BC 430 ABAP Dictionary)

173 Pages·2005·1.11 MB·Russian

BC430 - ABAP Dictionary
BC430
R/3 System
Release 46A
20.11.2000
0
BC430 - ABAP Dictionary.........................................................................................................................................1
Copyright.................................................................................................................................................................2
ABAP Workbench...............................................................................................................................................4
Course Content....................................................................................................................................................5
Introduction.............................................................................................................................................................1
Course Objectives...............................................................................................................................................2
Function of the ABAP Dictionary.......................................................................................................................3
Database Objects in the ABAP Dictionary.........................................................................................................4
Type Definitions in the ABAP Dictionary..........................................................................................................5
Services of the ABAP Dictionary.......................................................................................................................6
Linking to the Development and Runtime Environment....................................................................................7
Unit Summary.....................................................................................................................................................8
Tables in the ABAP Dictionary..............................................................................................................................1
Course Objectives...............................................................................................................................................2
Tables and Fields.................................................................................................................................................3
Basic Objects of the ABAP Dictionary...............................................................................................................4
Two-Level Domain Concept: Example...............................................................................................................5
Transparent Tables and Structures......................................................................................................................6
Include Structures................................................................................................................................................7
Technical Settings...............................................................................................................................................8
Data Class............................................................................................................................................................9
Size Category....................................................................................................................................................10
Logging.............................................................................................................................................................11
Unit Summary...................................................................................................................................................12
Exercise Data.....................................................................................................................................................13
Exercises: Tables in the ABAP Dictionary.......................................................................................................14
Solutions: Tables in the ABAP Dictionary.......................................................................................................17
Performance during Table Access...........................................................................................................................1
Course Objectives...............................................................................................................................................2
Structure of an Index...........................................................................................................................................3
Access with Indexes............................................................................................................................................4
Data Access using the Buffer..............................................................................................................................5
Table Buffering...................................................................................................................................................6
Full Buffering......................................................................................................................................................7
Generic Buffering................................................................................................................................................8
Single-Record Buffering.....................................................................................................................................9
Buffer Synchronization 1..................................................................................................................................10
Buffer Synchronization 2..................................................................................................................................11
Buffer Synchronization 3..................................................................................................................................12
Buffer Synchronization 4..................................................................................................................................13
Buffer Synchronization 5..................................................................................................................................14
Buffer Synchronization 6..................................................................................................................................15
Unit Summary...................................................................................................................................................16
Exercises: Performance during Table Access...................................................................................................17
Solutions: Performance during Table Access...................................................................................................19
Consistency through Input Checks..........................................................................................................................1
Course Objectives...............................................................................................................................................2
Fixed Values........................................................................................................................................................3
Value Table.........................................................................................................................................................4
Inserting a Data Record.......................................................................................................................................5
Violation of the Foreign Key Check...................................................................................................................6
Foreign Key Fields / Check Fields......................................................................................................................7
Data Consistency through Foreign Keys.............................................................................................................8
Foreign Key Definitions in the Check Field.......................................................................................................9
Check Table not Equal to Value Table.............................................................................................................10
Semantic Attributes...........................................................................................................................................11
Text Table.........................................................................................................................................................12
Summary...........................................................................................................................................................13
Exercises: Consistency through Input Checks..................................................................................................14
Solutions: Consistency through Input Checks..................................................................................................16
Dependencies of ABAP Dictionary Objects...........................................................................................................1
Course Objectives...............................................................................................................................................2
Active and Inactive Versions.............................................................................................................................3
Runtime Objects..................................................................................................................................................4
Handling of Dependent Objects..........................................................................................................................5
Where-Used Lists................................................................................................................................................6
The Repository Information System ABAP Dictionary.....................................................................................7
Unit Summary.....................................................................................................................................................8
Exercises: Dependencies of ABAP Dictionary Objects......................................................................................9
Solutions: Dependencies of ABAP Dictionary Objects....................................................................................11
Changes to Database Tables....................................................................................................................................1
Course Objectives...............................................................................................................................................2
Changes to Tables...............................................................................................................................................3
How is the Structure Adjusted?...........................................................................................................................4
Conversion Process 1..........................................................................................................................................5
Conversion Process 2..........................................................................................................................................6
Conversion Process 3..........................................................................................................................................7
Conversion Process 4..........................................................................................................................................8
Conversion Process 5..........................................................................................................................................9
Possible Problems during Conversions.............................................................................................................10
Resuming Terminated Conversions..................................................................................................................11
Append Structures 1..........................................................................................................................................12
Append Structures 2..........................................................................................................................................13
Append Structures 3..........................................................................................................................................14
Summary...........................................................................................................................................................15
Exercises: Changes to Database Tables............................................................................................................16
Solutions: Changes to Database Tables............................................................................................................18
Views.......................................................................................................................................................................1
Course Objectives...............................................................................................................................................2
Why do you Need Views?...................................................................................................................................3
Structure of a View - Starting Situation..............................................................................................................4
Structure of a View - Join Condition..................................................................................................................5
Structure of a View - Field Selection (Projection)..............................................................................................6
Structure of a View - Selection Condition..........................................................................................................7
How are Tables Linked to Views?......................................................................................................................8
Structure of the View..........................................................................................................................................9
Data Selection with Views................................................................................................................................10
Database Views.................................................................................................................................................11
Includes in Database Views..............................................................................................................................12
Maintenance Views...........................................................................................................................................13
Inner and Outer Joins........................................................................................................................................14
Unit Summary...................................................................................................................................................15
Exercises: Views...............................................................................................................................................16
Solutions: Views...............................................................................................................................................19
Search Helps............................................................................................................................................................1
Course Objectives...............................................................................................................................................2
R/3 Standard Function: Input Help.....................................................................................................................3
Requirements of the Input Help..........................................................................................................................4
ABAP Dictionary Object Search Help................................................................................................................5
Selection Method of a Search Help.....................................................................................................................6
Description of the Dialog Behavior....................................................................................................................7
Interface of a Search Help...................................................................................................................................8
How do you Use Search Helps?..........................................................................................................................9
Search Help Attachment in the ABAP Dictionary............................................................................................10
Overview: Mechanisms for the Input Help.......................................................................................................11
Performance of the Input Help..........................................................................................................................12
Alternative Search Paths...................................................................................................................................13
Collective Search Helps and Elementary Search Helps....................................................................................14
Append Search Helps........................................................................................................................................15
Unit Summary...................................................................................................................................................16
Exercises: Search Helps....................................................................................................................................17
Solutions: Search Helps....................................................................................................................................21
Appendix.................................................................................................................................................................1
Flight Data Model for ABAP Training Courses.................................................................................................2
Data Model..........................................................................................................................................................3
Implementation in the ABAP Dictionary............................................................................................................4
Decision Tree for Buffering................................................................................................................................5
View as Selection Method of a Search Help.......................................................................................................6
Further Options for Search Helps........................................................................................................................7
Non-Standard: Search Help Exit.........................................................................................................................8
Migration of Existing Input Helps......................................................................................................................9
Alternative Displays of the Input Help.............................................................................................................10
Important Menu Paths and Transactions...........................................................................................................11
Index..................................................................................................................................................................13
0
BC430 - ABAP Dictionary
BC430
BC430
ABAP Dictionary
ªª SSAAPP AAGG 1999
 R/3 System
 Release: 4.6A
 Version: January 2000
 Material number: 5003 3691
(C) SAP AG BC430 1
0.2
Copyright
Copyright 2000 SAP AG. All rights reserved.
Neither this training manual nor any part thereof may
be copied or reproduced in any form or by any means,
or translated into another language, without the prior
consent of SAP AG. The information contained in this
document is subject to change and supplement without prior
notice.
All rights reserved.
ª SAP AG 1999
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(C) SAP AG BC430 2
 The following are trademarks or registered trademarks of SAP AG; ABAP™, InterSAP, RIVA, R/2,
R/3, R/3 Retail, SAP (Word), SAPaccess, SAPfile, SAPfind, SAPmail, SAPoffice, SAPscript,
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 Other products, services, logos, or brand names included herein are trademarks or registered
trademarks of their respective owners.
(C) SAP AG BC430 3
0.3
ABAP Workbench
Level 2 Level 3
BC402 3 days BC414 2 days BC490 3 days
ABAP Programming Programming ABAP Performance
Techniques Database Updates Tuning
BC404 3 days BC415 2 days
ABAP Objects: Object-
Communication
Oriented Programming
in R/3 Interfaces in ABAP
BC405 3 days BC425 3 days
Techniques of List Enhancements
Processing and SAP Query and Modifications
BC410 5 days BC412 2 days
Programming Dialog Programming
BC400 5 days User Dialogs using EnjoySAP Controls
ABAP Workbench: BC420 5 days BC440 5 days
Concepts and Tools
Data Transfer Developing
Internet Applications
BC430 2 days
MBC40 2 days
ABAP Dictionary
Managing ABAP Recommended supplementary
BC460 3 days
Development Projects courses are:
SAPscript: Forms Design Business Process Technologies
and Text Management CA925, CA926, CA927
BC095 (Business Integration
CA610 2 days
Technology)
CATT:Test Workbench and
BC619 (ALE), BC620, BC621
Computer Aided Test Tool
ª SAP AG 1999
(C) SAP AG BC430 4
0.4
Course Content
Preface
Unit 1 Introduction Unit 5 Dependencies of
ABAP Dictionary
Unit 2 Tables in the Objects
ABAP Dictionary
Unit 6 Changes to Tables
Unit 3 Performance in
Table Accesses Unit 7 Views
Unit 4 Consistency through Unit 8 Search Helps
Input Checks
Exercises
Solutions
Appendixes
ª SAP AG 1999
(C) SAP AG BC430 5