ABAP Select data from SAP table FAAV_DOC_IT_BCF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAAV_DOC_IT_BCF
*  INTO TABLE @DATA(IT_FAAV_DOC_IT_BCF2).
*--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_FAAV_DOC_IT_BCF INDEX 1 INTO DATA(WA_FAAV_DOC_IT_BCF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAAV_DOC_IT_BCF>-MANDT = 1.
<FAAV_DOC_IT_BCF>-BUKRS = 1.
<FAAV_DOC_IT_BCF>-ANLN1 = 1.
<FAAV_DOC_IT_BCF>-ANLN2 = 1.
<FAAV_DOC_IT_BCF>-ANLGR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAAV_DOC_IT_BCF-ANLGR2, sy-vline,
  WA_FAAV_DOC_IT_BCF-AFABE, sy-vline,
  WA_FAAV_DOC_IT_BCF-GJAHR, sy-vline,
  WA_FAAV_DOC_IT_BCF-LDGRP, sy-vline,
  WA_FAAV_DOC_IT_BCF-HSL, sy-vline,
  WA_FAAV_DOC_IT_BCF-KSL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAAV_DOC_IT_BCF 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_FAAV_DOC_IT_BCF 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_FAAV_DOC_IT_BCF INTO WA_FAAV_DOC_IT_BCF.


*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 ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAAV_DOC_IT_BCF-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_DOC_IT_BCF-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAAV_DOC_IT_BCF-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_DOC_IT_BCF-ANLN2.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field ANLGR2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAAV_DOC_IT_BCF-ANLGR2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_DOC_IT_BCF-ANLGR2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FAAV_DOC_IT_BCF-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_DOC_IT_BCF-GJAHR.
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_FAAV_DOC_IT_BCF_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
ANLGR TYPE STRING,
ANLGR2 TYPE STRING,
AFABE TYPE STRING,
GJAHR TYPE STRING,
LDGRP TYPE STRING,
HSL TYPE STRING,
KSL TYPE STRING,
OSL TYPE STRING,
VSL TYPE STRING,
RHCUR TYPE STRING,
RKCUR TYPE STRING,
ROCUR TYPE STRING,
RVCUR TYPE STRING,
AWTYP TYPE STRING,
BWASL TYPE STRING,
MOVCAT TYPE STRING,
POPER TYPE STRING,
SLALITTYPE TYPE STRING,
SLALITTYPE_SRCE TYPE STRING,
DEAKT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAAV_DOC_IT_BCF_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_FAAV_DOC_IT_BCF_STR-MANDT sy-vline 
WA_FAAV_DOC_IT_BCF_STR-BUKRS sy-vline 
WA_FAAV_DOC_IT_BCF_STR-ANLN1 sy-vline 
WA_FAAV_DOC_IT_BCF_STR-ANLN2 sy-vline 
WA_FAAV_DOC_IT_BCF_STR-ANLGR sy-vline 
WA_FAAV_DOC_IT_BCF_STR-ANLGR2 sy-vline 
WA_FAAV_DOC_IT_BCF_STR-AFABE sy-vline 
WA_FAAV_DOC_IT_BCF_STR-GJAHR sy-vline 
WA_FAAV_DOC_IT_BCF_STR-LDGRP sy-vline 
WA_FAAV_DOC_IT_BCF_STR-HSL sy-vline 
WA_FAAV_DOC_IT_BCF_STR-KSL sy-vline 
WA_FAAV_DOC_IT_BCF_STR-OSL sy-vline 
WA_FAAV_DOC_IT_BCF_STR-VSL sy-vline 
WA_FAAV_DOC_IT_BCF_STR-RHCUR sy-vline 
WA_FAAV_DOC_IT_BCF_STR-RKCUR sy-vline 
WA_FAAV_DOC_IT_BCF_STR-ROCUR sy-vline 
WA_FAAV_DOC_IT_BCF_STR-RVCUR sy-vline 
WA_FAAV_DOC_IT_BCF_STR-AWTYP sy-vline 
WA_FAAV_DOC_IT_BCF_STR-BWASL sy-vline 
WA_FAAV_DOC_IT_BCF_STR-MOVCAT sy-vline 
WA_FAAV_DOC_IT_BCF_STR-POPER sy-vline 
WA_FAAV_DOC_IT_BCF_STR-SLALITTYPE sy-vline 
WA_FAAV_DOC_IT_BCF_STR-SLALITTYPE_SRCE sy-vline 
WA_FAAV_DOC_IT_BCF_STR-DEAKT sy-vline      INTO ld_text SEPARATED BY SPACE.

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