ABAP Select data from SAP table PSTCPGROUPING into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSTCPGROUPING
*  INTO TABLE @DATA(IT_PSTCPGROUPING2).
*--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_PSTCPGROUPING INDEX 1 INTO DATA(WA_PSTCPGROUPING2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSTCPGROUPING>-MANDT = 1.
<PSTCPGROUPING>-CASHPOSITIONPROFILE = 1.
<PSTCPGROUPING>-CASHPOSITIONHIERNODE = 1.
<PSTCPGROUPING>-CASHPOSITIONHIERPARENTNODE = 1.
<PSTCPGROUPING>-CASHPOSITIONHIERNODEVALUE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSTCPGROUPING-CASHPOSITIONHIERNODETYPE, sy-vline,
  WA_PSTCPGROUPING-CASHPOSITIONHIERNEXTNODETYPE, sy-vline,
  WA_PSTCPGROUPING-BANKACCOUNTINTERNALID, sy-vline,
  WA_PSTCPGROUPING-COMPANYCODE, sy-vline,
  WA_PSTCPGROUPING-BANKCOUNTRY, sy-vline,
  WA_PSTCPGROUPING-BANK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSTCPGROUPING 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_PSTCPGROUPING 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_PSTCPGROUPING INTO WA_PSTCPGROUPING.


*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 RISKPARTNERNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PSTCPGROUPING-RISKPARTNERNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSTCPGROUPING-RISKPARTNERNO.
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_PSTCPGROUPING_STR, 
MANDT TYPE STRING,
CASHPOSITIONPROFILE TYPE STRING,
CASHPOSITIONHIERNODE TYPE STRING,
CASHPOSITIONHIERPARENTNODE TYPE STRING,
CASHPOSITIONHIERNODEVALUE TYPE STRING,
CASHPOSITIONHIERNODETYPE TYPE STRING,
CASHPOSITIONHIERNEXTNODETYPE TYPE STRING,
BANKACCOUNTINTERNALID TYPE STRING,
COMPANYCODE TYPE STRING,
BANKCOUNTRY TYPE STRING,
BANK TYPE STRING,
BANKACCOUNTCURRENCY TYPE STRING,
COUNTRY TYPE STRING,
RISKPARTNERNO TYPE STRING,
BANKACCOUNTNUMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSTCPGROUPING_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_PSTCPGROUPING_STR-MANDT sy-vline 
WA_PSTCPGROUPING_STR-CASHPOSITIONPROFILE sy-vline 
WA_PSTCPGROUPING_STR-CASHPOSITIONHIERNODE sy-vline 
WA_PSTCPGROUPING_STR-CASHPOSITIONHIERPARENTNODE sy-vline 
WA_PSTCPGROUPING_STR-CASHPOSITIONHIERNODEVALUE sy-vline 
WA_PSTCPGROUPING_STR-CASHPOSITIONHIERNODETYPE sy-vline 
WA_PSTCPGROUPING_STR-CASHPOSITIONHIERNEXTNODETYPE sy-vline 
WA_PSTCPGROUPING_STR-BANKACCOUNTINTERNALID sy-vline 
WA_PSTCPGROUPING_STR-COMPANYCODE sy-vline 
WA_PSTCPGROUPING_STR-BANKCOUNTRY sy-vline 
WA_PSTCPGROUPING_STR-BANK sy-vline 
WA_PSTCPGROUPING_STR-BANKACCOUNTCURRENCY sy-vline 
WA_PSTCPGROUPING_STR-COUNTRY sy-vline 
WA_PSTCPGROUPING_STR-RISKPARTNERNO sy-vline 
WA_PSTCPGROUPING_STR-BANKACCOUNTNUMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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