SAP ABAP 内部表(Internal Tables) 内部表(Internal Tables) 内部表实际上是一个临时表,其中包含正在执行的 ABAP 程序的记录。内部表仅在 SAP 程序运行期间存在。它们使用 ABAP 语言处理大量数据。当您需要从数据库表中检索数据时,我们需要在 ABAP 程序中声明一个内部表。
• INSERT <wa> INTO [TABLE] <itab> [INDEX <idx>]. • 如: 12 / 33 • 带表头行的内表 • INSERT [TABLE] <itab> [INDEX <idx>]. • 如: 13 / 33 • 不带表头行的内表 • READ TABLE <itab> INTO <wa> INDEX <idx>. • 如: 14 / 33 • 带表头行的内表 • ...
一. Internal Table 的宣告 ABAP/4中的Internal Table是一种Data Structure,类似于其它语言中的STRUTURE,它可以由几个不同类型的字段(field)组成,用来表示具有不同属性的某一事物,单独一笔数据表示某个事物,多笔数据表示具有相同属性的多个事物.例如: 为了存取或记录某班的同学资料,我们创建如下的internal table: DA...
Note − Much less memory is consumed when an internal table is populated for the first time.ExampleStep 1 − Open the ABAP Editor by executing the SE38 transaction code. The initial screen of ABAP Editor appears.Step 2 − In the initial screen, enter a name for the program, select ...
What are Internal Table & How to Create Internal Tables in SAP ABAP - An internal table, like a database table, is made of one or more rows of the same structure. While a..
Internal tables and structures are the two structured data types in ABAP. The data type of an internal table is fully specified by its line type, key, and table type. Line typeThe line type of an internal table can be any data type. The data type of an internal table is normally a ...
SAP ABAP - Removal of Internal Tables The DELETE statement is utilized to remove records from an internal table . Records in an internal table can be deleted by providing a table key or condition, or by deleting entries. If an internal table has a non-unique key and contains duplicates, th...
These tables occupy memory only at run-time and not at the time of their declaration.Internal tables only exist when a program is running, so when the code is written, the internal table must be structured in such a way that the program can make use of it. You will find that internal...
1) Convenient declaration Table and header line structure declared in same statement 2) Ease of use Don’t have to explicitly move data into the work area structure and then append the work area structure to the table 3) Some statements require a table with header line ...
Performing Data Manipulations using Internal Table, We can perform the following data manipulations on internal tables. 1.Moving and assign internal tables