ABAP Select data from SAP table FINB_GN_ACT_ANSWER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FINB_GN_ACT_ANSWER
*  INTO TABLE @DATA(IT_FINB_GN_ACT_ANSWER2).
*--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_FINB_GN_ACT_ANSWER INDEX 1 INTO DATA(WA_FINB_GN_ACT_ANSWER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FINB_GN_ACT_ANSWER>-ERROR = 1.
<FINB_GN_ACT_ANSWER>-LOGSYS = 1.
<FINB_GN_ACT_ANSWER>-SUBRC = 1.
<FINB_GN_ACT_ANSWER>-CONVERSION = 1.
<FINB_GN_ACT_ANSWER>-KIND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FINB_GN_ACT_ANSWER-INCLUDE, sy-vline,
  WA_FINB_GN_ACT_ANSWER-LINE, sy-vline,
  WA_FINB_GN_ACT_ANSWER-NAME, sy-vline,
  WA_FINB_GN_ACT_ANSWER-MSGID, sy-vline,
  WA_FINB_GN_ACT_ANSWER-MSGNO, sy-vline,
  WA_FINB_GN_ACT_ANSWER-MSGTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FINB_GN_ACT_ANSWER 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_FINB_GN_ACT_ANSWER 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_FINB_GN_ACT_ANSWER INTO WA_FINB_GN_ACT_ANSWER.


*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.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FINB_GN_ACT_ANSWER-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINB_GN_ACT_ANSWER-LOGSYS.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_FINB_GN_ACT_ANSWER_STR, 
ERROR TYPE STRING,
LOGSYS TYPE STRING,
SUBRC TYPE STRING,
CONVERSION TYPE STRING,
KIND TYPE STRING,
INCLUDE TYPE STRING,
LINE TYPE STRING,
NAME TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGTY TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
MESSAGE TYPE STRING,
WORD TYPE STRING,
T_DEP_OBJS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FINB_GN_ACT_ANSWER_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_FINB_GN_ACT_ANSWER_STR-ERROR sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-LOGSYS sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-SUBRC sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-CONVERSION sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-KIND sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-INCLUDE sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-LINE sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-NAME sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-MSGID sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-MSGNO sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-MSGTY sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-MSGV1 sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-MSGV2 sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-MSGV3 sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-MSGV4 sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-MESSAGE sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-WORD sy-vline 
WA_FINB_GN_ACT_ANSWER_STR-T_DEP_OBJS sy-vline      INTO ld_text SEPARATED BY SPACE.

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