ABAP Select data from SAP table PPMGAC_T_INTRES into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PPMGAC_T_INTRES 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_T_INTRES. 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_T_INTRES 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_T_INTRES TYPE STANDARD TABLE OF PPMGAC_T_INTRES,
      WA_PPMGAC_T_INTRES TYPE PPMGAC_T_INTRES,
      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_T_INTRES> TYPE PPMGAC_T_INTRES.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPMGAC_T_INTRES
*  INTO TABLE @DATA(IT_PPMGAC_T_INTRES2).
*--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_T_INTRES INDEX 1 INTO DATA(WA_PPMGAC_T_INTRES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPMGAC_T_INTRES>-MANDT = 1.
<PPMGAC_T_INTRES>-PREPAYMENTAGREEMENT = 1.
<PPMGAC_T_INTRES>-PREPAYMENTAGRMTREFDOCUMENT = 1.
<PPMGAC_T_INTRES>-PREPAYMENTAGRMTREFDOCITEM = 1.
<PPMGAC_T_INTRES>-PREPAYMENTAGRMTREFBUSOBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPMGAC_T_INTRES-DBERBIS, sy-vline,
  WA_PPMGAC_T_INTRES-SFHAZBA, sy-vline,
  WA_PPMGAC_T_INTRES-ACT_EV_DATE, sy-vline,
  WA_PPMGAC_T_INTRES-ACT_EV_AMT, sy-vline,
  WA_PPMGAC_T_INTRES-PRIN_RED_MET, sy-vline,
  WA_PPMGAC_T_INTRES-DZTERM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPMGAC_T_INTRES 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_T_INTRES 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_T_INTRES INTO WA_PPMGAC_T_INTRES.


*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 PREPAYMENTAGRMTREFDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPMGAC_T_INTRES-PREPAYMENTAGRMTREFDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMGAC_T_INTRES-PREPAYMENTAGRMTREFDOCUMENT.
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_T_INTRES_STR, 
MANDT TYPE STRING,
PREPAYMENTAGREEMENT TYPE STRING,
PREPAYMENTAGRMTREFDOCUMENT TYPE STRING,
PREPAYMENTAGRMTREFDOCITEM TYPE STRING,
PREPAYMENTAGRMTREFBUSOBJECT TYPE STRING,
DBERBIS TYPE STRING,
SFHAZBA TYPE STRING,
ACT_EV_DATE TYPE STRING,
ACT_EV_AMT TYPE STRING,
PRIN_RED_MET TYPE STRING,
DZTERM TYPE STRING,
BZBETR TYPE STRING,
WZBETR TYPE STRING,
BBASIS TYPE STRING,
PKOND TYPE STRING,
SZBMETH TYPE STRING,
DBERVON TYPE STRING,
ATAGE TYPE STRING,
CALCULATION_METHOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPMGAC_T_INTRES_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_T_INTRES_STR-MANDT sy-vline 
WA_PPMGAC_T_INTRES_STR-PREPAYMENTAGREEMENT sy-vline 
WA_PPMGAC_T_INTRES_STR-PREPAYMENTAGRMTREFDOCUMENT sy-vline 
WA_PPMGAC_T_INTRES_STR-PREPAYMENTAGRMTREFDOCITEM sy-vline 
WA_PPMGAC_T_INTRES_STR-PREPAYMENTAGRMTREFBUSOBJECT sy-vline 
WA_PPMGAC_T_INTRES_STR-DBERBIS sy-vline 
WA_PPMGAC_T_INTRES_STR-SFHAZBA sy-vline 
WA_PPMGAC_T_INTRES_STR-ACT_EV_DATE sy-vline 
WA_PPMGAC_T_INTRES_STR-ACT_EV_AMT sy-vline 
WA_PPMGAC_T_INTRES_STR-PRIN_RED_MET sy-vline 
WA_PPMGAC_T_INTRES_STR-DZTERM sy-vline 
WA_PPMGAC_T_INTRES_STR-BZBETR sy-vline 
WA_PPMGAC_T_INTRES_STR-WZBETR sy-vline 
WA_PPMGAC_T_INTRES_STR-BBASIS sy-vline 
WA_PPMGAC_T_INTRES_STR-PKOND sy-vline 
WA_PPMGAC_T_INTRES_STR-SZBMETH sy-vline 
WA_PPMGAC_T_INTRES_STR-DBERVON sy-vline 
WA_PPMGAC_T_INTRES_STR-ATAGE sy-vline 
WA_PPMGAC_T_INTRES_STR-CALCULATION_METHOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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