ABAP Select data from SAP table AQDBPA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AQDBPA
*  INTO TABLE @DATA(IT_AQDBPA2).
*--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_AQDBPA INDEX 1 INTO DATA(WA_AQDBPA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AQDBPA>-NAME = 1.
<AQDBPA>-SEL = 1.
<AQDBPA>-STDSEL = 1.
<AQDBPA>-ORDER = 1.
<AQDBPA>-TINDX1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AQDBPA-TINDX2, sy-vline,
  WA_AQDBPA-TYPE, sy-vline,
  WA_AQDBPA-LENGTH, sy-vline,
  WA_AQDBPA-LIKE, sy-vline,
  WA_AQDBPA-CODE, sy-vline,
  WA_AQDBPA-SET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AQDBPA 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_AQDBPA 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_AQDBPA INTO WA_AQDBPA.


*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_AQDBPA_STR, 
NAME TYPE STRING,
SEL TYPE STRING,
STDSEL TYPE STRING,
ORDER TYPE STRING,
TINDX1 TYPE STRING,
TINDX2 TYPE STRING,
TYPE TYPE STRING,
LENGTH TYPE STRING,
LIKE TYPE STRING,
CODE TYPE STRING,
SET TYPE STRING,
SETNAME TYPE STRING,
TINDXS1 TYPE STRING,
TINDXS2 TYPE STRING,
NO_DISPLAY TYPE STRING,
DISPLAY TYPE STRING,
OBLIGATORY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AQDBPA_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_AQDBPA_STR-NAME sy-vline 
WA_AQDBPA_STR-SEL sy-vline 
WA_AQDBPA_STR-STDSEL sy-vline 
WA_AQDBPA_STR-ORDER sy-vline 
WA_AQDBPA_STR-TINDX1 sy-vline 
WA_AQDBPA_STR-TINDX2 sy-vline 
WA_AQDBPA_STR-TYPE sy-vline 
WA_AQDBPA_STR-LENGTH sy-vline 
WA_AQDBPA_STR-LIKE sy-vline 
WA_AQDBPA_STR-CODE sy-vline 
WA_AQDBPA_STR-SET sy-vline 
WA_AQDBPA_STR-SETNAME sy-vline 
WA_AQDBPA_STR-TINDXS1 sy-vline 
WA_AQDBPA_STR-TINDXS2 sy-vline 
WA_AQDBPA_STR-NO_DISPLAY sy-vline 
WA_AQDBPA_STR-DISPLAY sy-vline 
WA_AQDBPA_STR-OBLIGATORY sy-vline      INTO ld_text SEPARATED BY SPACE.

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