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abap学习笔记之二

原创 IT职场 作者:leetz 时间:2009-09-29 18:18:43 0 删除 编辑

主要是翻译sap sdn上面的文章[@more@]

1. internal tables 的三种类型 standard table, sorted table and hashed table

2.SAP Memory 和 ABAP Memory的区别

SAP Memory is a global memory area which all sessions within a
SAPgui have access to if they run on the same application server instance. This allows for passing data between sessions.

SAP Memory是全局内存区,同一个应以实例服务器上所有会话都可以访问,而且可以在不同会话间传递数据


The SET PARAMETER ID and GET PARAMETER ID statements are
used to manipulate the SAP Memory.

SET PARAMETER ID 'MAT' field p_matnr.
GET PARAMETER ID 'MAT' field p_matnr.

ABAP Memory is a memory area which all programs in the call stack
within the same internal session can access.

ABAP Memory是同一个会话里不同程序可以访问的内存区

The EXPORT and IMPORT
statements are used here.

export p_matnr = p_matnr to memory id 'ZTESTMAT'.import p_matnr = p_matnr from memory id 'ZTESTMAT'.

3. What are the events used in report programs?

Load-of-Program

Initialization 初始化

At Selection-Screen 屏幕选择

At Selection-Screen on

At Selection-Screen on block

At Selection-Screen output

start-of-selection

top-of-page 页头

end-of-selection.

end-of-page. 页尾

At Pf

At Line-Selection

At User-Command

Top-of-Page during line-selection

来自 “ ITPUB博客 ” ,链接:http://blog.itpub.net/112322/viewspace-1027495/,如需转载,请注明出处,否则将追究法律责任。

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