ABAP Select data from SAP table ESH_L_ACCOU_BKPF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_L_ACCOU_BKPF
*  INTO TABLE @DATA(IT_ESH_L_ACCOU_BKPF2).
*--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_ESH_L_ACCOU_BKPF INDEX 1 INTO DATA(WA_ESH_L_ACCOU_BKPF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_L_ACCOU_BKPF>-MANDT = 1.
<ESH_L_ACCOU_BKPF>-BUKRS = 1.
<ESH_L_ACCOU_BKPF>-BELNR = 1.
<ESH_L_ACCOU_BKPF>-GJAHR = 1.
<ESH_L_ACCOU_BKPF>-BLART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_L_ACCOU_BKPF-BLDAT, sy-vline,
  WA_ESH_L_ACCOU_BKPF-BUDAT, sy-vline,
  WA_ESH_L_ACCOU_BKPF-MONAT, sy-vline,
  WA_ESH_L_ACCOU_BKPF-CPUDT, sy-vline,
  WA_ESH_L_ACCOU_BKPF-UPDDT, sy-vline,
  WA_ESH_L_ACCOU_BKPF-USNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_L_ACCOU_BKPF 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_ESH_L_ACCOU_BKPF 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_ESH_L_ACCOU_BKPF INTO WA_ESH_L_ACCOU_BKPF.


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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_ACCOU_BKPF-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_ACCOU_BKPF-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_ACCOU_BKPF-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_ACCOU_BKPF-RLDNR.
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_ESH_L_ACCOU_BKPF_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BLART TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
MONAT TYPE STRING,
CPUDT TYPE STRING,
UPDDT TYPE STRING,
USNAM TYPE STRING,
XBLNR TYPE STRING,
BKTXT TYPE STRING,
WAERS TYPE STRING,
BSTAT TYPE STRING,
AWTYP TYPE STRING,
AWKEY TYPE STRING,
HWAER TYPE STRING,
RLDNR TYPE STRING,
LDGRP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_L_ACCOU_BKPF_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_ESH_L_ACCOU_BKPF_STR-MANDT sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-BUKRS sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-BELNR sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-GJAHR sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-BLART sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-BLDAT sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-BUDAT sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-MONAT sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-CPUDT sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-UPDDT sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-USNAM sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-XBLNR sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-BKTXT sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-WAERS sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-BSTAT sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-AWTYP sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-AWKEY sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-HWAER sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-RLDNR sy-vline 
WA_ESH_L_ACCOU_BKPF_STR-LDGRP sy-vline      INTO ld_text SEPARATED BY SPACE.

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