ABAP Select data from SAP table T862S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T862S table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to T862S. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the T862S table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_T862S TYPE STANDARD TABLE OF T862S,
      WA_T862S TYPE T862S,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <T862S> TYPE T862S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T862S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T862S
  INTO TABLE IT_T862S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T862S
*  INTO TABLE @DATA(IT_T862S2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_T862S INDEX 1 INTO DATA(WA_T862S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T862S ASSIGNING <T862S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T862S>-MANDT = 1.
<T862S>-FORMOC = 1.
<T862S>-SEQNO = 1.
<T862S>-LINE = 1.
<T862S>-COLUM = 1.

ENDLOOP.

LOOP AT IT_T862S INTO WA_T862S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T862S-RANGE, sy-vline,
  WA_T862S-RATYP, sy-vline,
  WA_T862S-GROKZ, sy-vline,
  WA_T862S-GRP, sy-vline,
  WA_T862S-POSET, sy-vline,
  WA_T862S-TKONZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T862S you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_T862S TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_T862S INTO WA_T862S.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_T862S_STR, 
MANDT TYPE STRING,
FORMOC TYPE STRING,
SEQNO TYPE STRING,
LINE TYPE STRING,
COLUM TYPE STRING,
RANGE TYPE STRING,
RATYP TYPE STRING,
GROKZ TYPE STRING,
GRP TYPE STRING,
POSET TYPE STRING,
TKONZ TYPE STRING,
PERCT TYPE STRING,
ROUND TYPE STRING,
DECPL TYPE STRING,
SPGRP TYPE STRING,
TRENN TYPE STRING,
TXTKZ TYPE STRING,
TXTNR TYPE STRING,
EDLIN TYPE STRING,
LIGHT TYPE STRING,
LGTH TYPE STRING,
NOGES TYPE STRING,
ZEROWB TYPE STRING,
SIGN_FML TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T862S_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_T862S_STR-MANDT sy-vline 
WA_T862S_STR-FORMOC sy-vline 
WA_T862S_STR-SEQNO sy-vline 
WA_T862S_STR-LINE sy-vline 
WA_T862S_STR-COLUM sy-vline 
WA_T862S_STR-RANGE sy-vline 
WA_T862S_STR-RATYP sy-vline 
WA_T862S_STR-GROKZ sy-vline 
WA_T862S_STR-GRP sy-vline 
WA_T862S_STR-POSET sy-vline 
WA_T862S_STR-TKONZ sy-vline 
WA_T862S_STR-PERCT sy-vline 
WA_T862S_STR-ROUND sy-vline 
WA_T862S_STR-DECPL sy-vline 
WA_T862S_STR-SPGRP sy-vline 
WA_T862S_STR-TRENN sy-vline 
WA_T862S_STR-TXTKZ sy-vline 
WA_T862S_STR-TXTNR sy-vline 
WA_T862S_STR-EDLIN sy-vline 
WA_T862S_STR-LIGHT sy-vline 
WA_T862S_STR-LGTH sy-vline 
WA_T862S_STR-NOGES sy-vline 
WA_T862S_STR-ZEROWB sy-vline 
WA_T862S_STR-SIGN_FML sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.