ABAP Select data from SAP table AQFGINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AQFGINFO
*  INTO TABLE @DATA(IT_AQFGINFO2).
*--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_AQFGINFO INDEX 1 INTO DATA(WA_AQFGINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AQFGINFO>-NUMB = 1.
<AQFGINFO>-SGNA = 1.
<AQFGINFO>-NAME = 1.
<AQFGINFO>-TINDX = 1.
<AQFGINFO>-TINDXU1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AQFGINFO-TINDXU2, sy-vline,
  WA_AQFGINFO-TYPE, sy-vline,
  WA_AQFGINFO-OLENG, sy-vline,
  WA_AQFGINFO-DECIMALS, sy-vline,
  WA_AQFGINFO-ADDY, sy-vline,
  WA_AQFGINFO-CURRY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AQFGINFO 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_AQFGINFO 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_AQFGINFO INTO WA_AQFGINFO.


*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_AQFGINFO_STR, 
NUMB TYPE STRING,
SGNA TYPE STRING,
NAME TYPE STRING,
TINDX TYPE STRING,
TINDXU1 TYPE STRING,
TINDXU2 TYPE STRING,
TYPE TYPE STRING,
OLENG TYPE STRING,
DECIMALS TYPE STRING,
ADDY TYPE STRING,
CURRY TYPE STRING,
GTYPE TYPE STRING,
OBJSEL TYPE STRING,
NO_SUM TYPE STRING,
IS_TEXT TYPE STRING,
TEXTSGNA TYPE STRING,
TEXTNAME TYPE STRING,
INTSORT TYPE STRING,
OBLIGATORY TYPE STRING,
NO_SELECT TYPE STRING,
FGTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AQFGINFO_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_AQFGINFO_STR-NUMB sy-vline 
WA_AQFGINFO_STR-SGNA sy-vline 
WA_AQFGINFO_STR-NAME sy-vline 
WA_AQFGINFO_STR-TINDX sy-vline 
WA_AQFGINFO_STR-TINDXU1 sy-vline 
WA_AQFGINFO_STR-TINDXU2 sy-vline 
WA_AQFGINFO_STR-TYPE sy-vline 
WA_AQFGINFO_STR-OLENG sy-vline 
WA_AQFGINFO_STR-DECIMALS sy-vline 
WA_AQFGINFO_STR-ADDY sy-vline 
WA_AQFGINFO_STR-CURRY sy-vline 
WA_AQFGINFO_STR-GTYPE sy-vline 
WA_AQFGINFO_STR-OBJSEL sy-vline 
WA_AQFGINFO_STR-NO_SUM sy-vline 
WA_AQFGINFO_STR-IS_TEXT sy-vline 
WA_AQFGINFO_STR-TEXTSGNA sy-vline 
WA_AQFGINFO_STR-TEXTNAME sy-vline 
WA_AQFGINFO_STR-INTSORT sy-vline 
WA_AQFGINFO_STR-OBLIGATORY sy-vline 
WA_AQFGINFO_STR-NO_SELECT sy-vline 
WA_AQFGINFO_STR-FGTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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