ABAP Select data from SAP table PPMGAG_T_PTERMS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPMGAG_T_PTERMS
*  INTO TABLE @DATA(IT_PPMGAG_T_PTERMS2).
*--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_PPMGAG_T_PTERMS INDEX 1 INTO DATA(WA_PPMGAG_T_PTERMS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPMGAG_T_PTERMS>-MANDT = 1.
<PPMGAG_T_PTERMS>-PAYMENT_TERMS_GUID = 1.
<PPMGAG_T_PTERMS>-SAPBUSINESSOBJECTTYPECODE = 1.
<PPMGAG_T_PTERMS>-DOCNUMBER = 1.
<PPMGAG_T_PTERMS>-DOCUMENTITEMNUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPMGAG_T_PTERMS-SERIAL_NUMBER, sy-vline,
  WA_PPMGAG_T_PTERMS-ZTERM, sy-vline,
  WA_PPMGAG_T_PTERMS-PPMT_REQ, sy-vline,
  WA_PPMGAG_T_PTERMS-PPMT_DATE, sy-vline,
  WA_PPMGAG_T_PTERMS-PPMT_RCVD, sy-vline,
  WA_PPMGAG_T_PTERMS-PPMT_MADE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPMGAG_T_PTERMS 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_PPMGAG_T_PTERMS 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_PPMGAG_T_PTERMS INTO WA_PPMGAG_T_PTERMS.


*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 DOCNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPMGAG_T_PTERMS-DOCNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMGAG_T_PTERMS-DOCNUMBER.
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_PPMGAG_T_PTERMS_STR, 
MANDT TYPE STRING,
PAYMENT_TERMS_GUID TYPE STRING,
SAPBUSINESSOBJECTTYPECODE TYPE STRING,
DOCNUMBER TYPE STRING,
DOCUMENTITEMNUMBER TYPE STRING,
SERIAL_NUMBER TYPE STRING,
ZTERM TYPE STRING,
PPMT_REQ TYPE STRING,
PPMT_DATE TYPE STRING,
PPMT_RCVD TYPE STRING,
PPMT_MADE TYPE STRING,
PPMT_TYP TYPE STRING,
PPMT_AMT TYPE STRING,
WAERS TYPE STRING,
PREPAYMENTAGREEMENT TYPE STRING,
DELETED TYPE STRING,
STATUS TYPE STRING,
CONDITIONAPPLICATION TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPMGAG_T_PTERMS_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_PPMGAG_T_PTERMS_STR-MANDT sy-vline 
WA_PPMGAG_T_PTERMS_STR-PAYMENT_TERMS_GUID sy-vline 
WA_PPMGAG_T_PTERMS_STR-SAPBUSINESSOBJECTTYPECODE sy-vline 
WA_PPMGAG_T_PTERMS_STR-DOCNUMBER sy-vline 
WA_PPMGAG_T_PTERMS_STR-DOCUMENTITEMNUMBER sy-vline 
WA_PPMGAG_T_PTERMS_STR-SERIAL_NUMBER sy-vline 
WA_PPMGAG_T_PTERMS_STR-ZTERM sy-vline 
WA_PPMGAG_T_PTERMS_STR-PPMT_REQ sy-vline 
WA_PPMGAG_T_PTERMS_STR-PPMT_DATE sy-vline 
WA_PPMGAG_T_PTERMS_STR-PPMT_RCVD sy-vline 
WA_PPMGAG_T_PTERMS_STR-PPMT_MADE sy-vline 
WA_PPMGAG_T_PTERMS_STR-PPMT_TYP sy-vline 
WA_PPMGAG_T_PTERMS_STR-PPMT_AMT sy-vline 
WA_PPMGAG_T_PTERMS_STR-WAERS sy-vline 
WA_PPMGAG_T_PTERMS_STR-PREPAYMENTAGREEMENT sy-vline 
WA_PPMGAG_T_PTERMS_STR-DELETED sy-vline 
WA_PPMGAG_T_PTERMS_STR-STATUS sy-vline 
WA_PPMGAG_T_PTERMS_STR-CONDITIONAPPLICATION sy-vline 
WA_PPMGAG_T_PTERMS_STR-CREATEDBYUSER sy-vline 
WA_PPMGAG_T_PTERMS_STR-CREATIONDATETIME sy-vline 
WA_PPMGAG_T_PTERMS_STR-LASTCHANGEDBYUSER sy-vline 
WA_PPMGAG_T_PTERMS_STR-LASTCHANGEDATETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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