ABAP Select data from SAP table /ACCGO/CAK_S_MASS_PRCNG_GRPNG into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ACCGO/CAK_S_MASS_PRCNG_GRPNG 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 /ACCGO/CAK_S_MASS_PRCNG_GRPNG. 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 /ACCGO/CAK_S_MASS_PRCNG_GRPNG 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_/ACCGO/CAK_S_MASS_PRCNG_GRPNG TYPE STANDARD TABLE OF /ACCGO/CAK_S_MASS_PRCNG_GRPNG,
      WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG TYPE /ACCGO/CAK_S_MASS_PRCNG_GRPNG,
      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: </ACCGO/CAK_S_MASS_PRCNG_GRPNG> TYPE /ACCGO/CAK_S_MASS_PRCNG_GRPNG.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ACCGO/CAK_S_MASS_PRCNG_GRPNG
  INTO TABLE IT_/ACCGO/CAK_S_MASS_PRCNG_GRPNG.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ACCGO/CAK_S_MASS_PRCNG_GRPNG
*  INTO TABLE @DATA(IT_/ACCGO/CAK_S_MASS_PRCNG_GRPNG2).
*--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_/ACCGO/CAK_S_MASS_PRCNG_GRPNG INDEX 1 INTO DATA(WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ACCGO/CAK_S_MASS_PRCNG_GRPNG ASSIGNING </ACCGO/CAK_S_MASS_PRCNG_GRPNG>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ACCGO/CAK_S_MASS_PRCNG_GRPNG>-ACMPRCGSOURCELOTGROUP = 1.
</ACCGO/CAK_S_MASS_PRCNG_GRPNG>-PRICING_APPROACH_CATEGORY = 1.
</ACCGO/CAK_S_MASS_PRCNG_GRPNG>-DERIVATIVECONTRSPECIFICATION = 1.
</ACCGO/CAK_S_MASS_PRCNG_GRPNG>-ACMDERIVATIVECONTRSPECSTXT = 1.
</ACCGO/CAK_S_MASS_PRCNG_GRPNG>-ACMPRICINGMARKETIDENTIFIERCODE = 1.

ENDLOOP.

LOOP AT IT_/ACCGO/CAK_S_MASS_PRCNG_GRPNG INTO WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG-ACMMARKETIDENTIFIERCODETXT, sy-vline,
  WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG-DERIVATIVECONTRACTMATURITYCODE, sy-vline,
  WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG-DOCUMENT_CURRENCY, sy-vline,
  WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG-MATURITYKEYDATE, sy-vline,
  WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG-PRICE_FIXATION_STATUS, sy-vline,
  WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG-MATURITYCODEFC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG 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_/ACCGO/CAK_S_MASS_PRCNG_GRPNG 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_/ACCGO/CAK_S_MASS_PRCNG_GRPNG INTO WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG.


*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 DERIVATIVECONTRACTMATURITYCODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG-DERIVATIVECONTRACTMATURITYCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG-DERIVATIVECONTRACTMATURITYCODE.
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_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR, 
ACMPRCGSOURCELOTGROUP TYPE STRING,
PRICING_APPROACH_CATEGORY TYPE STRING,
DERIVATIVECONTRSPECIFICATION TYPE STRING,
ACMDERIVATIVECONTRSPECSTXT TYPE STRING,
ACMPRICINGMARKETIDENTIFIERCODE TYPE STRING,
ACMMARKETIDENTIFIERCODETXT TYPE STRING,
DERIVATIVECONTRACTMATURITYCODE TYPE STRING,
DOCUMENT_CURRENCY TYPE STRING,
MATURITYKEYDATE TYPE STRING,
PRICE_FIXATION_STATUS TYPE STRING,
MATURITYCODEFC TYPE STRING,
MATURITYKEYDATEFC TYPE STRING,
MARKETIDENTIFIERCODEFC TYPE STRING,
DERIVATIVECONTRSPECIFICATIONFC TYPE STRING,
CONDITIONS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_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_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-ACMPRCGSOURCELOTGROUP sy-vline 
WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-PRICING_APPROACH_CATEGORY sy-vline 
WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-DERIVATIVECONTRSPECIFICATION sy-vline 
WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-ACMDERIVATIVECONTRSPECSTXT sy-vline 
WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-ACMPRICINGMARKETIDENTIFIERCODE sy-vline 
WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-ACMMARKETIDENTIFIERCODETXT sy-vline 
WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-DERIVATIVECONTRACTMATURITYCODE sy-vline 
WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-DOCUMENT_CURRENCY sy-vline 
WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-MATURITYKEYDATE sy-vline 
WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-PRICE_FIXATION_STATUS sy-vline 
WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-MATURITYCODEFC sy-vline 
WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-MATURITYKEYDATEFC sy-vline 
WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-MARKETIDENTIFIERCODEFC sy-vline 
WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-DERIVATIVECONTRSPECIFICATIONFC sy-vline 
WA_/ACCGO/CAK_S_MASS_PRCNG_GRPNG_STR-CONDITIONS sy-vline      INTO ld_text SEPARATED BY SPACE.

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