ABAP Select data from SAP table PPMGAC_S_ACLHDR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPMGAC_S_ACLHDR
*  INTO TABLE @DATA(IT_PPMGAC_S_ACLHDR2).
*--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_PPMGAC_S_ACLHDR INDEX 1 INTO DATA(WA_PPMGAC_S_ACLHDR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPMGAC_S_ACLHDR>-PREPAYMENTAGRMTACCRUALUUID = 1.
<PPMGAC_S_ACLHDR>-PREPAYMENTAGRMTACCRUAL = 1.
<PPMGAC_S_ACLHDR>-PURCHASINGORGANIZATION = 1.
<PPMGAC_S_ACLHDR>-PURCHASINGGROUP = 1.
<PPMGAC_S_ACLHDR>-SALESORGANIZATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPMGAC_S_ACLHDR-DISTRIBUTIONCHANNEL, sy-vline,
  WA_PPMGAC_S_ACLHDR-DIVISION, sy-vline,
  WA_PPMGAC_S_ACLHDR-COUNTERPARTY, sy-vline,
  WA_PPMGAC_S_ACLHDR-COMPANYCODE, sy-vline,
  WA_PPMGAC_S_ACLHDR-PREPAYACCRUALPOSTEDDOCUMENT, sy-vline,
  WA_PPMGAC_S_ACLHDR-PREPAYACCRUALREVERSEDDOCUMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPMGAC_S_ACLHDR 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_PPMGAC_S_ACLHDR 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_PPMGAC_S_ACLHDR INTO WA_PPMGAC_S_ACLHDR.


*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 COUNTERPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPMGAC_S_ACLHDR-COUNTERPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMGAC_S_ACLHDR-COUNTERPARTY.
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_PPMGAC_S_ACLHDR_STR, 
PREPAYMENTAGRMTACCRUALUUID TYPE STRING,
PREPAYMENTAGRMTACCRUAL TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
COUNTERPARTY TYPE STRING,
COMPANYCODE TYPE STRING,
PREPAYACCRUALPOSTEDDOCUMENT TYPE STRING,
PREPAYACCRUALREVERSEDDOCUMENT TYPE STRING,
PREPAYMENTAGRMTACCRAMOUNT TYPE STRING,
PREPAYMENTAGRMTACCRUALCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPMGAC_S_ACLHDR_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_PPMGAC_S_ACLHDR_STR-PREPAYMENTAGRMTACCRUALUUID sy-vline 
WA_PPMGAC_S_ACLHDR_STR-PREPAYMENTAGRMTACCRUAL sy-vline 
WA_PPMGAC_S_ACLHDR_STR-PURCHASINGORGANIZATION sy-vline 
WA_PPMGAC_S_ACLHDR_STR-PURCHASINGGROUP sy-vline 
WA_PPMGAC_S_ACLHDR_STR-SALESORGANIZATION sy-vline 
WA_PPMGAC_S_ACLHDR_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_PPMGAC_S_ACLHDR_STR-DIVISION sy-vline 
WA_PPMGAC_S_ACLHDR_STR-COUNTERPARTY sy-vline 
WA_PPMGAC_S_ACLHDR_STR-COMPANYCODE sy-vline 
WA_PPMGAC_S_ACLHDR_STR-PREPAYACCRUALPOSTEDDOCUMENT sy-vline 
WA_PPMGAC_S_ACLHDR_STR-PREPAYACCRUALREVERSEDDOCUMENT sy-vline 
WA_PPMGAC_S_ACLHDR_STR-PREPAYMENTAGRMTACCRAMOUNT sy-vline 
WA_PPMGAC_S_ACLHDR_STR-PREPAYMENTAGRMTACCRUALCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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