ABAP Select data from SAP table PPMGAC_S_ACCRUAL 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_ACCRUAL 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_ACCRUAL. 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_ACCRUAL 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_ACCRUAL TYPE STANDARD TABLE OF PPMGAC_S_ACCRUAL,
      WA_PPMGAC_S_ACCRUAL TYPE PPMGAC_S_ACCRUAL,
      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_ACCRUAL> TYPE PPMGAC_S_ACCRUAL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPMGAC_S_ACCRUAL
*  INTO TABLE @DATA(IT_PPMGAC_S_ACCRUAL2).
*--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_ACCRUAL INDEX 1 INTO DATA(WA_PPMGAC_S_ACCRUAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPMGAC_S_ACCRUAL>-ICON = 1.
<PPMGAC_S_ACCRUAL>-INTEREST = 1.
<PPMGAC_S_ACCRUAL>-PREPAYMENTAGREEMENTTYPE = 1.
<PPMGAC_S_ACCRUAL>-PREPAYMENTAGREEMENTUUID = 1.
<PPMGAC_S_ACCRUAL>-PREPAYMENTAGREEMENTCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPMGAC_S_ACCRUAL-PREPAYMENTAGREEMENT, sy-vline,
  WA_PPMGAC_S_ACCRUAL-PURCHASINGGROUP, sy-vline,
  WA_PPMGAC_S_ACCRUAL-PURCHASINGORGANIZATION, sy-vline,
  WA_PPMGAC_S_ACCRUAL-SALESORGANIZATION, sy-vline,
  WA_PPMGAC_S_ACCRUAL-DISTRIBUTIONCHANNEL, sy-vline,
  WA_PPMGAC_S_ACCRUAL-DIVISION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPMGAC_S_ACCRUAL 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_ACCRUAL 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_ACCRUAL INTO WA_PPMGAC_S_ACCRUAL.


*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_ACCRUAL-COUNTERPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMGAC_S_ACCRUAL-COUNTERPARTY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PPMGAC_S_ACCRUAL-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMGAC_S_ACCRUAL-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MASS_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PPMGAC_S_ACCRUAL-MASS_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMGAC_S_ACCRUAL-MASS_UOM.
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_ACCRUAL_STR, 
ICON TYPE STRING,
INTEREST TYPE STRING,
PREPAYMENTAGREEMENTTYPE TYPE STRING,
PREPAYMENTAGREEMENTUUID TYPE STRING,
PREPAYMENTAGREEMENTCATEGORY TYPE STRING,
PREPAYMENTAGREEMENT TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
PLANT TYPE STRING,
COMPANYCODE TYPE STRING,
COUNTERPARTY TYPE STRING,
PREPAYMENTAGREEMENTCOMMODITY TYPE STRING,
PREPAYMENTAGREEMENTAMOUNT TYPE STRING,
PREPAYMENTAGREEMENTCURRENCY TYPE STRING,
PREPAYMENTPOSTEDAMOUNT TYPE STRING,
PREPAYMENTSTARTINTRSTDATETYPE TYPE STRING,
PREPAYMENTSTOPINTRSTDATETYPE TYPE STRING,
GRPKEY TYPE STRING,
MATERIAL TYPE STRING,
MASS_UOM TYPE STRING,
PREPAYMENTAGRMTPLANT TYPE STRING,
LOCKED TYPE STRING,
POSTED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPMGAC_S_ACCRUAL_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_ACCRUAL_STR-ICON sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-INTEREST sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-PREPAYMENTAGREEMENTTYPE sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-PREPAYMENTAGREEMENTUUID sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-PREPAYMENTAGREEMENTCATEGORY sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-PREPAYMENTAGREEMENT sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-PURCHASINGGROUP sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-PURCHASINGORGANIZATION sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-SALESORGANIZATION sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-DIVISION sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-PLANT sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-COMPANYCODE sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-COUNTERPARTY sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-PREPAYMENTAGREEMENTCOMMODITY sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-PREPAYMENTAGREEMENTAMOUNT sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-PREPAYMENTAGREEMENTCURRENCY sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-PREPAYMENTPOSTEDAMOUNT sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-PREPAYMENTSTARTINTRSTDATETYPE sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-PREPAYMENTSTOPINTRSTDATETYPE sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-GRPKEY sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-MATERIAL sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-MASS_UOM sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-PREPAYMENTAGRMTPLANT sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-LOCKED sy-vline 
WA_PPMGAC_S_ACCRUAL_STR-POSTED sy-vline      INTO ld_text SEPARATED BY SPACE.

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