If you have an internal table with header line and you want to address the body of the table, you must indicate this by placing brackets after the table name (itab[]). Otherwise, ABAP interprets the name as the name of the header line and not of the body of the table. You can avoid this potential confusion by using internal tables without header lines. In particular, internal tables nested in structures or other internal tables must not have a header line…

Internal table with header line. abap. In ABAP OO you cannot use internal tables with header line. Try to modify your program using a field symbol: DATA: IT_BSEG TYPE TABLE IT_VBSEG. FIELD-SYMBOLS: like line of IT_BSEG. LOOP AT IT_BSEG ASSIGNING . -FIELX = -FIELX + wa_x. ENDLOOP.

Latest notes:Outside of classes, an obsolete short form is possible where FROM wa can be omitted if the internal table has a header line itab with the same name. The statement then uses the header line as the work area implicitly. Furthermore, USING KEY cannot be specified without USING KEY. DATA itab TYPE line OCCURS 0 WITH HEADER LINE. 有无header line的区别就是,header line可以当作一个work area来使用(参照我之前的一个日志). 有一下两种方式操作itab: 1). wa-field1 = 1.

Abap itab with header line

Otherwise, ABAP interprets the name as the name of the header line and not of the body of the table. You can avoid this potential confusion by using internal tables without header lines. In particular, internal tables nested in structures or other internal tables must not have a header line… In ABAP there are tables with header lines, and tables without header lines. Tables with header lines are an older concept and should not be used in new development.

Ø If the system does not find such an entry, the contents of the header line is You can always address the body of an internal table explicitly by using the following syntax: []. This syntax is always valid, whether the internal table has a header line or not. Example.

During the select statement you retrieve data from a database table into an internal table (multiple rows) or a work area or header line (single row).

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The ABAP code below is a full code listing to execute function module CKMS_HEADER_READ_WITH_ITAB including all data declarations. The code uses the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the original method of declaring data variables up front.

DATA itab TYPE line OCCURS 0 WITH HEADER LINE. 有无header line的区别就是,header line可以当作一个work area来使用(参照我之前的一个日志). 有一下两种方式操作itab: 1).

DELETE is the statement to delete one or more lines from an ABAP Internal Table.Use the INDEX addition to delete a single line. If we use the INDEX addition and the operation is successful, SY-SUBRC will be set to zero, the line with the corresponding index in the internal table will be deleted and the indexes of the subsequent lines will be reduced by one.

Executar uma cláusula “select” DATA itab [TYPE linetype|LIKE lineobj] OCCURS n [WITH HEADER LINE]. 6.
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Header line is a implicit work area for the internal table. It depends on how the internal table is declared that the itab will have the header line or not. e.g. data: begin of itab occurs 10, ab type c, cd type i, end of itab. " this table will have the header line. data: wa_itab like itab. " explicit work area for itab. data: itab1 like itab occurs 10. " table is without header line. The header line is a field string with the same structure as a row of the body, but it can only hold a

APPEND wa TO itab. 2). itab-field1 = 1.