ABAP Select data from SAP table POAC_ACCRUALS_BASIS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM POAC_ACCRUALS_BASIS
*  INTO TABLE @DATA(IT_POAC_ACCRUALS_BASIS2).
*--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_POAC_ACCRUALS_BASIS INDEX 1 INTO DATA(WA_POAC_ACCRUALS_BASIS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<POAC_ACCRUALS_BASIS>-EBELN = 1.
<POAC_ACCRUALS_BASIS>-EBELP = 1.
<POAC_ACCRUALS_BASIS>-ZEKKN = 1.
<POAC_ACCRUALS_BASIS>-ETENR = 1.
<POAC_ACCRUALS_BASIS>-GJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_POAC_ACCRUALS_BASIS-BELNR, sy-vline,
  WA_POAC_ACCRUALS_BASIS-BUZEI, sy-vline,
  WA_POAC_ACCRUALS_BASIS-VGABE, sy-vline,
  WA_POAC_ACCRUALS_BASIS-BUDAT, sy-vline,
  WA_POAC_ACCRUALS_BASIS-SHKZG, sy-vline,
  WA_POAC_ACCRUALS_BASIS-NETWR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_POAC_ACCRUALS_BASIS 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_POAC_ACCRUALS_BASIS 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_POAC_ACCRUALS_BASIS INTO WA_POAC_ACCRUALS_BASIS.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_POAC_ACCRUALS_BASIS-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POAC_ACCRUALS_BASIS-ANLN1.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_POAC_ACCRUALS_BASIS-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POAC_ACCRUALS_BASIS-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_POAC_ACCRUALS_BASIS-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POAC_ACCRUALS_BASIS-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_POAC_ACCRUALS_BASIS-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_POAC_ACCRUALS_BASIS-MEINS.
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_POAC_ACCRUALS_BASIS_STR, 
EBELN TYPE STRING,
EBELP TYPE STRING,
ZEKKN TYPE STRING,
ETENR TYPE STRING,
GJAHR TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
VGABE TYPE STRING,
BUDAT TYPE STRING,
SHKZG TYPE STRING,
NETWR TYPE STRING,
NAVNW TYPE STRING,
MENGE TYPE STRING,
MENGE_F TYPE STRING,
SAKTO TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
PROJN TYPE STRING,
VBELN TYPE STRING,
VBELP TYPE STRING,
VETEN TYPE STRING,
KZBRB TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
AUFNR TYPE STRING,
KOKRS TYPE STRING,
KSTRG TYPE STRING,
PAOBJNR TYPE STRING,
PRCTR TYPE STRING,
PS_PSP_PNR TYPE STRING,
NPLNR TYPE STRING,
AUFPL TYPE STRING,
IMKEY TYPE STRING,
APLZL TYPE STRING,
VPTNR TYPE STRING,
FIPOS TYPE STRING,
FISTL TYPE STRING,
GEBER TYPE STRING,
FKBER TYPE STRING,
ANZAHLKZ TYPE STRING,
DOCUMENT_WAERS TYPE STRING,
ITEM_WAERS TYPE STRING,
HEADER_WAERS TYPE STRING,
ITEM_NETWR TYPE STRING,
ITEM_NAVNW TYPE STRING,
DUMMY_INCL_EEW_COBL TYPE STRING,
MEINS TYPE STRING,
XMACC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_POAC_ACCRUALS_BASIS_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_POAC_ACCRUALS_BASIS_STR-EBELN sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-EBELP sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-ZEKKN sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-ETENR sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-GJAHR sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-BELNR sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-BUZEI sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-VGABE sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-BUDAT sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-SHKZG sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-NETWR sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-NAVNW sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-MENGE sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-MENGE_F sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-SAKTO sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-GSBER sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-KOSTL sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-PROJN sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-VBELN sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-VBELP sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-VETEN sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-KZBRB sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-ANLN1 sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-ANLN2 sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-AUFNR sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-KOKRS sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-KSTRG sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-PAOBJNR sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-PRCTR sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-PS_PSP_PNR sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-NPLNR sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-AUFPL sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-IMKEY sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-APLZL sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-VPTNR sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-FIPOS sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-FISTL sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-GEBER sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-FKBER sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-ANZAHLKZ sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-DOCUMENT_WAERS sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-ITEM_WAERS sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-HEADER_WAERS sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-ITEM_NETWR sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-ITEM_NAVNW sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-DUMMY_INCL_EEW_COBL sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-MEINS sy-vline 
WA_POAC_ACCRUALS_BASIS_STR-XMACC sy-vline      INTO ld_text SEPARATED BY SPACE.

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