ABAP Select data from SAP table PMMO_DISTR_BALCHK_HDR_DISPLAY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMMO_DISTR_BALCHK_HDR_DISPLAY
*  INTO TABLE @DATA(IT_PMMO_DISTR_BALCHK_HDR_DISPLAY2).
*--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_PMMO_DISTR_BALCHK_HDR_DISPLAY INDEX 1 INTO DATA(WA_PMMO_DISTR_BALCHK_HDR_DISPLAY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMMO_DISTR_BALCHK_HDR_DISPLAY>-GRPNR = 1.
<PMMO_DISTR_BALCHK_HDR_DISPLAY>-POSID = 1.
<PMMO_DISTR_BALCHK_HDR_DISPLAY>-EXPAND = 1.
<PMMO_DISTR_BALCHK_HDR_DISPLAY>-WTG = 1.
<PMMO_DISTR_BALCHK_HDR_DISPLAY>-TWAER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMMO_DISTR_BALCHK_HDR_DISPLAY-WOG, sy-vline,
  WA_PMMO_DISTR_BALCHK_HDR_DISPLAY-OWAER, sy-vline,
  WA_PMMO_DISTR_BALCHK_HDR_DISPLAY-WKG, sy-vline,
  WA_PMMO_DISTR_BALCHK_HDR_DISPLAY-KWAER, sy-vline,
  WA_PMMO_DISTR_BALCHK_HDR_DISPLAY-WRTTP, sy-vline,
  WA_PMMO_DISTR_BALCHK_HDR_DISPLAY-WRTTP_TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMMO_DISTR_BALCHK_HDR_DISPLAY 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_PMMO_DISTR_BALCHK_HDR_DISPLAY 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_PMMO_DISTR_BALCHK_HDR_DISPLAY INTO WA_PMMO_DISTR_BALCHK_HDR_DISPLAY.


*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 ABPSP, internal->external for field GRPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_PMMO_DISTR_BALCHK_HDR_DISPLAY-GRPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_DISTR_BALCHK_HDR_DISPLAY-GRPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PMMO_DISTR_BALCHK_HDR_DISPLAY-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_DISTR_BALCHK_HDR_DISPLAY-POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WRTTP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMMO_DISTR_BALCHK_HDR_DISPLAY-WRTTP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_DISTR_BALCHK_HDR_DISPLAY-WRTTP.
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_PMMO_DISTR_BALCHK_HDR_DISPLAY_STR, 
GRPNR TYPE STRING,
POSID TYPE STRING,
EXPAND TYPE STRING,
WTG TYPE STRING,
TWAER TYPE STRING,
WOG TYPE STRING,
OWAER TYPE STRING,
WKG TYPE STRING,
KWAER TYPE STRING,
WRTTP TYPE STRING,
WRTTP_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMMO_DISTR_BALCHK_HDR_DISPLAY_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_PMMO_DISTR_BALCHK_HDR_DISPLAY_STR-GRPNR sy-vline 
WA_PMMO_DISTR_BALCHK_HDR_DISPLAY_STR-POSID sy-vline 
WA_PMMO_DISTR_BALCHK_HDR_DISPLAY_STR-EXPAND sy-vline 
WA_PMMO_DISTR_BALCHK_HDR_DISPLAY_STR-WTG sy-vline 
WA_PMMO_DISTR_BALCHK_HDR_DISPLAY_STR-TWAER sy-vline 
WA_PMMO_DISTR_BALCHK_HDR_DISPLAY_STR-WOG sy-vline 
WA_PMMO_DISTR_BALCHK_HDR_DISPLAY_STR-OWAER sy-vline 
WA_PMMO_DISTR_BALCHK_HDR_DISPLAY_STR-WKG sy-vline 
WA_PMMO_DISTR_BALCHK_HDR_DISPLAY_STR-KWAER sy-vline 
WA_PMMO_DISTR_BALCHK_HDR_DISPLAY_STR-WRTTP sy-vline 
WA_PMMO_DISTR_BALCHK_HDR_DISPLAY_STR-WRTTP_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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