Easy-to-understand SAP ABAP session management (Session Management) concept explanation, including specific examples and trial versions

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Since the author wrote the first article on April 10, 2021 , this set of zero-based fast learning ABAP has been updated with thanks to the support of the majority of learners. 56This tutorial plans to spend the 150above space to introduce you to all aspects of SAP ABAP development in detail.

In the process of learning the tutorial, if you have anything you want to know about the development of SAP ABAP, you can comment directly under each article of the tutorial, or you can read the "Zero Basic Quick Learning ABAP Reader Feedback and Next Writing Plan" message in. I will summarize everyone's opinions and use it as one of the content reference sources for my updated tutorial.

Directory of zero-based ABAP learning tutorial series articles

• 1. One of the BC400 study notes of the ABAP standard training course: the architecture of the ABAP server and an introduction to the structure of a typical ABAP program

• 2. ABAP Standard Training Course BC400 Study Notes II: The Difference Between Cross-client and Client-specific

• 3. ABAP Standard Training Course BC400 Study Notes No. 3: Features and Basic Elements of ABAP Programming Language

• 4. ABAP Standard Training Course BC400 Study Notes No. 4: Data Types of ABAP Programming Language

• 5. ABAP Standard Training Course BC400 Study Notes No. 5: Variables, Constants and Literals of ABAP Programming Language, and Text Symbols

ABAP Basics

• 6. Through practical examples, introduce the use skills of Repository Information System in SAP ABAP

• 7. Use of ABAP function module

• 8. Definition and use of ABAP subroutine

• 9. Variables and Constants in ABAP

• 10. System Fields in ABAP programming language

• 11. What is ABAP Field Symbol

• 12. Introduction to ABAP reference types

• 13. An introduction to the use of the ABAP debugger in the most easy-to-understand SAPGUI

• 14. How to create the simplest ABAP database table, and code to read data from the database table (on)

• 15. How to create the simplest ABAP database table, and code to read data from the database table (below)

• 16. Read local text file content with ABAP

• 17. 26 lines of ABAP code use the HTTP_GET function to download the homepage data of the Baidu website

• 18. How ABAP parses JSON data

• 19. How to copy an ABAP class from a local file to the SAP system

• 20. A Preliminary Exploration of Object-Oriented ABAP Programming - What are Classes, Instances, and Public Methods

• 21. User input function of SAP ABAP report

• 22. Use the ABAP transaction code SM59 to create a Destination to read data from the external network

• 23. Through a specific example, explain the use steps of SAP BDC technology

• 24. Starting from interpreting the code automatically generated by BDC, explain the program components of SAPGUI

• 25. How to query the database table storage corresponding to a field on the SAPGUI screen

• 26. How to use transaction code SAT to find the name of the background storage database table corresponding to a SAPGUI screen field

• 27. Step by step detailed steps to create an ABAP program with a custom Screen

• 28. Some knowledge points that SAP ABAP string variables are easily overlooked and confused

• Introduction to SAP ABAP's standard function TEXT_CONVERT_XLS_TO_SAP for processing Excel

• 29. Teach a man how to fish - see a field on the SAP MM material display interface, how to find which field in which database table is stored

• 30. Several common methods of database table query in SAP ABAP system

• 31. How to enable ABAP server to respond to custom HTTP requests initiated through browser

• 32. Some personalized settings and practical tips of SAPGUI shared by a 15-year SAP ABAP developer

• 33. How to use saplink to install ABAP programs provided on other websites

• 34. How to add F4 Value Help to the input parameters of the report in the ABAP report

• 35. How to upload local files in binary mode in ABAP report

• 36. Problems and solutions related to Chinese character set in file operations in ABAP

• 37. How to update and delete ABAP database table through ABAP code

• 38. How to make ABAP report run in background job mode

• 39. How to parse XML file using ABAP code

• 40. How to use ABAP code to send mail to specified mailbox

• 41. How to send email with PDF attachment using ABAP code

• 50. How to display PDF files uploaded to ABAP server in SAPGUI

• 51. How to use Adobe Form in SAP ABAP system

• 52. Use SAP ABAP code to generate PDF files, fill them with business data and display them in SAPGUI

• 53. How to display the content of a database table in the SAP ABAP system in Adobe PDF Form

• 54. Use the ABAP code to make a two-dimensional code (QRCode) that the mobile phone can scan

• 55. ABAP is a mixed programming language that supports process-oriented and object-oriented. Which one is used in actual development?

• More articles are being written

Office Topics

• 42. Use ABAP to create a new local Excel file and write data

• 43. How to create a Word document with different font sizes using ABAP

• More articles are being written

ALV Development Topics

• 44. 27 lines of code to develop a simplest SAP ALV report

• 45. 48 lines of code to add color effects to the data rows of the ABAP ALV report

• 46. ​​77 lines of code to implement double-click event processing in ABAP ALV

• 47. How does the SAP ABAP ALV hierarchical sequence table use multiple headers for data output

• 48. How to display the value of a column as a traffic light in the SAP ABAP ALV report

• 49. Display the SAP ABAP ALV list in the pop-up dialog window

• 56. Hands-on development of a useful ABAP ALV tool - view the ABAP transmission request of the specified user, simulate the SE10 transaction code

• 57. Special explanation of the usage of the F1 function key in SAPGUI

More articles are being written

The steps before this tutorial show you how to open the ABAP help document through the F1 shortcut key:

• 57. Special explanation of the usage of the F1 function key in SAPGUI

In the open ABAP help document, enter the keyword session and press Enter:

We can see the following search results interface, double-click in the results list session:

Then you can see the following architecture diagram.

This picture conveys many concepts. In this step, we need to master three concepts related to session management:

• User Session is the user session
• ABAP Session, ABAP session. A user session can contain multiple ABAP sessions.
• Internal Session, internal session. An ABAP session can contain multiple internal sessions.
  

The following is a specific explanation.