ABAP Select data from SAP table FACRA_GENERAL_STRUCTURE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FACRA_GENERAL_STRUCTURE
*  INTO TABLE @DATA(IT_FACRA_GENERAL_STRUCTURE2).
*--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_FACRA_GENERAL_STRUCTURE INDEX 1 INTO DATA(WA_FACRA_GENERAL_STRUCTURE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FACRA_GENERAL_STRUCTURE>-LDGRP = 1.
<FACRA_GENERAL_STRUCTURE>-ICON_STATUS = 1.
<FACRA_GENERAL_STRUCTURE>-ICON_ATTACHMENT = 1.
<FACRA_GENERAL_STRUCTURE>-COMP = 1.
<FACRA_GENERAL_STRUCTURE>-LOGSYS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FACRA_GENERAL_STRUCTURE-BUKRS, sy-vline,
  WA_FACRA_GENERAL_STRUCTURE-REF_KEY, sy-vline,
  WA_FACRA_GENERAL_STRUCTURE-REF_SUBKEY, sy-vline,
  WA_FACRA_GENERAL_STRUCTURE-ITEMTYPE, sy-vline,
  WA_FACRA_GENERAL_STRUCTURE-RLDNR, sy-vline,
  WA_FACRA_GENERAL_STRUCTURE-PERIOD_END_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FACRA_GENERAL_STRUCTURE 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_FACRA_GENERAL_STRUCTURE 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_FACRA_GENERAL_STRUCTURE INTO WA_FACRA_GENERAL_STRUCTURE.


*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_FACRA_GENERAL_STRUCTURE-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FACRA_GENERAL_STRUCTURE-LOGSYS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit AC152, internal->external for field TOTAL_ACCR_AMNT_WSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FACRA_GENERAL_STRUCTURE-TOTAL_ACCR_AMNT_WSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FACRA_GENERAL_STRUCTURE-TOTAL_ACCR_AMNT_WSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field POSTED_CUR_PERIOD_WSL
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_FACRA_GENERAL_STRUCTURE-POSTED_CUR_PERIOD_WSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FACRA_GENERAL_STRUCTURE-POSTED_CUR_PERIOD_WSL.
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_FACRA_GENERAL_STRUCTURE_STR, 
LDGRP TYPE STRING,
ICON_STATUS TYPE STRING,
ICON_ATTACHMENT TYPE STRING,
COMP TYPE STRING,
LOGSYS TYPE STRING,
BUKRS TYPE STRING,
REF_KEY TYPE STRING,
REF_SUBKEY TYPE STRING,
ITEMTYPE TYPE STRING,
RLDNR TYPE STRING,
PERIOD_END_DATE TYPE STRING,
ACCR_SUBOBJ_LC_STATUS TYPE STRING,
PREMTRE_FDATE TYPE STRING,
XOBSOLETE TYPE STRING,
PERIOD_AMNT_SOURCE TYPE STRING,
REVIEW_STATUS TYPE STRING,
REVIEW_TYPE TYPE STRING,
XREVIEWED TYPE STRING,
APPROVAL_STATUS TYPE STRING,
APPROVAL_TYPE TYPE STRING,
XAPPROVED TYPE STRING,
TOTAL_ACCR_AMNT_WSL TYPE STRING,
POSTED_CUR_PERIOD_WSL TYPE STRING,
STYLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FACRA_GENERAL_STRUCTURE_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_FACRA_GENERAL_STRUCTURE_STR-LDGRP sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-ICON_STATUS sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-ICON_ATTACHMENT sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-COMP sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-LOGSYS sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-BUKRS sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-REF_KEY sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-REF_SUBKEY sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-ITEMTYPE sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-RLDNR sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-PERIOD_END_DATE sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-ACCR_SUBOBJ_LC_STATUS sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-PREMTRE_FDATE sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-XOBSOLETE sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-PERIOD_AMNT_SOURCE sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-REVIEW_STATUS sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-REVIEW_TYPE sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-XREVIEWED sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-APPROVAL_STATUS sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-APPROVAL_TYPE sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-XAPPROVED sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-TOTAL_ACCR_AMNT_WSL sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-POSTED_CUR_PERIOD_WSL sy-vline 
WA_FACRA_GENERAL_STRUCTURE_STR-STYLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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