An internal table without header line is passed to the subroutines. Each subroutine declares a work area F_LINE as a local data object. Were ITAB a table with a header line, you would have to replace ITAB with ITAB[] in the PERFORM and FORM statements. 2) This example is provided for completeness.

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wa-field2 = 2. APPEND wa TO itab. 2). itab-field1 = 1. itab-field2 = 2.

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It declares an internal table customer_tab[] and a structure customer_tab. You could then do such "amazing" things like. DATA: ITAB TYPE T_ITAB OCCURS 100 WITH HEADER LINE. Ø You declare an internal table using the DATA statement. Ø To define an internal table with a header line, you can use one of the following possibilities: You either use the fields of the table line between BEGIN OF OCCURS and END OF or you refer to a structure type when defining the table. You can use the header line as a work area when you process the internal table. The ABAP In the early days of ABAP development there was a slightly different concept to declaring a multi line table and its single lined header / work area.

Internal table with header line Loop at itab.

The header line component itable1-F1 has been assigned a value of -96. Insert statement inserts the header line as new row into the body before row 3. The existing row 3 becomes row 4 after the insert. The LOOP AT statement retrieves those rows from the internal table that have an F1 value greater than or equal to 3.

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.

APPEND LINES OF JTAB FROM 2 TO 3 TO ITAB. LOOP AT ITAB. WRITE: / ITAB-COL1, ITAB-COL2. ENDLOOP. This example creates two internal tables of the same type, ITAB and JTAB, both with a header line. In the DO loop, ITAB is filled with a list of square numbers, and JTAB with a list of cube numbers. Then, the last two lines of JTAB are appended to

Data: Itab1 type itab occurs 0. 4. Data: Begin of itab1 occurs 0. Include structure itab. Data: End of itab1.

코딩시 주로 사용되는 명령어를 정리해 보았습니다 명령어 Sample code 설명 CLEAR itab. CLEAR itab. (with header line)CLEAR itab[].
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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.

Only initialize  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). Example- DATA itab TYPE line OCCURS 10 with header line. Updating multiple entries 1. CORRESPONDING in ABAP 7.
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2019-02-07

Internal Table: Standard Table with / without header line.

2006-04-08 · 1) CLEAR . If u use itab as one with header line, this stmt clears contents of header line only. 2) CLEAR []. This clears the body contents of int.table. So in order to access an internal table with header line, we have to call it as ITAB[] or else only the header line is called. Also header line eliminates the use of extra structure.

The LOOP AT statement retrieves those rows from the internal table that have an F1 value greater than or equal to 3. Internal Table created with this type of declaration is similar to declaration done in ‘a’ type the only difference is by default internal table created by this type is with header line, Data:Begin of itab occurs 0 carrid like sflight-carrid, connid like sflight-connid, fldate like sflight-f1date End of itab. 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.

It is here that all the changes or any of the action on the contents of the table are done. 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 2008-07-23 · Using header line can cause ambiguity in code, for example CLEAR t_itab2 means that you cleared entire contents of table t_itab2, whilst the statement CLEAR t_itab1 will only clear the contents of t_itab1 header. To clear the entire contents of internal table with header line, use brackets after variable statement, ex: CLEAR t_itab1[].