ABAP Select data from SAP table PB2ADATXSTR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PB2ADATXSTR 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 PB2ADATXSTR. 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 PB2ADATXSTR 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_PB2ADATXSTR TYPE STANDARD TABLE OF PB2ADATXSTR,
      WA_PB2ADATXSTR TYPE PB2ADATXSTR,
      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: <PB2ADATXSTR> TYPE PB2ADATXSTR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PB2ADATXSTR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PB2ADATXSTR
  INTO TABLE IT_PB2ADATXSTR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PB2ADATXSTR
*  INTO TABLE @DATA(IT_PB2ADATXSTR2).
*--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_PB2ADATXSTR INDEX 1 INTO DATA(WA_PB2ADATXSTR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PB2ADATXSTR ASSIGNING <PB2ADATXSTR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PB2ADATXSTR>-MANDT = 1.
<PB2ADATXSTR>-MOLGA = 1.
<PB2ADATXSTR>-SAGRP = 1.
<PB2ADATXSTR>-DOCTY = 1.
<PB2ADATXSTR>-B2AID = 1.

ENDLOOP.

LOOP AT IT_PB2ADATXSTR INTO WA_PB2ADATXSTR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PB2ADATXSTR-SEQNO, sy-vline,
  WA_PB2ADATXSTR-DSPLT, sy-vline,
  WA_PB2ADATXSTR-TECTY, sy-vline,
  WA_PB2ADATXSTR-BUSTY, sy-vline,
  WA_PB2ADATXSTR-COMPR, sy-vline,
  WA_PB2ADATXSTR-DATAXSTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PB2ADATXSTR 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_PB2ADATXSTR 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_PB2ADATXSTR INTO WA_PB2ADATXSTR.


*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_PB2ADATXSTR_STR, 
MANDT TYPE STRING,
MOLGA TYPE STRING,
SAGRP TYPE STRING,
DOCTY TYPE STRING,
B2AID TYPE STRING,
SEQNO TYPE STRING,
DSPLT TYPE STRING,
TECTY TYPE STRING,
BUSTY TYPE STRING,
COMPR TYPE STRING,
DATAXSTR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PB2ADATXSTR_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_PB2ADATXSTR_STR-MANDT sy-vline 
WA_PB2ADATXSTR_STR-MOLGA sy-vline 
WA_PB2ADATXSTR_STR-SAGRP sy-vline 
WA_PB2ADATXSTR_STR-DOCTY sy-vline 
WA_PB2ADATXSTR_STR-B2AID sy-vline 
WA_PB2ADATXSTR_STR-SEQNO sy-vline 
WA_PB2ADATXSTR_STR-DSPLT sy-vline 
WA_PB2ADATXSTR_STR-TECTY sy-vline 
WA_PB2ADATXSTR_STR-BUSTY sy-vline 
WA_PB2ADATXSTR_STR-COMPR sy-vline 
WA_PB2ADATXSTR_STR-DATAXSTR sy-vline      INTO ld_text SEPARATED BY SPACE.

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