ABAP Select data from SAP table PMMO_HST_BUF_CONSUMPTION into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PMMO_HST_BUF_CONSUMPTION 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_HST_BUF_CONSUMPTION. 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_HST_BUF_CONSUMPTION 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_HST_BUF_CONSUMPTION TYPE STANDARD TABLE OF PMMO_HST_BUF_CONSUMPTION,
      WA_PMMO_HST_BUF_CONSUMPTION TYPE PMMO_HST_BUF_CONSUMPTION,
      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_HST_BUF_CONSUMPTION> TYPE PMMO_HST_BUF_CONSUMPTION.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMMO_HST_BUF_CONSUMPTION
*  INTO TABLE @DATA(IT_PMMO_HST_BUF_CONSUMPTION2).
*--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_HST_BUF_CONSUMPTION INDEX 1 INTO DATA(WA_PMMO_HST_BUF_CONSUMPTION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMMO_HST_BUF_CONSUMPTION>-MANDT = 1.
<PMMO_HST_BUF_CONSUMPTION>-BERID = 1.
<PMMO_HST_BUF_CONSUMPTION>-GRPNR = 1.
<PMMO_HST_BUF_CONSUMPTION>-S_REPOBJ = 1.
<PMMO_HST_BUF_CONSUMPTION>-R_REPOBJ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMMO_HST_BUF_CONSUMPTION-PSPNR_ASSGD, sy-vline,
  WA_PMMO_HST_BUF_CONSUMPTION-RQMTOBJ_TOP, sy-vline,
  WA_PMMO_HST_BUF_CONSUMPTION-CHARG, sy-vline,
  WA_PMMO_HST_BUF_CONSUMPTION-S_CPUDT, sy-vline,
  WA_PMMO_HST_BUF_CONSUMPTION-S_SERNR, sy-vline,
  WA_PMMO_HST_BUF_CONSUMPTION-MATNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMMO_HST_BUF_CONSUMPTION 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_HST_BUF_CONSUMPTION 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_HST_BUF_CONSUMPTION INTO WA_PMMO_HST_BUF_CONSUMPTION.


*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_HST_BUF_CONSUMPTION-GRPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_HST_BUF_CONSUMPTION-GRPNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GERNR, internal->external for field S_SERNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_PMMO_HST_BUF_CONSUMPTION-S_SERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_HST_BUF_CONSUMPTION-S_SERNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PMMO_HST_BUF_CONSUMPTION-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_HST_BUF_CONSUMPTION-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PMMO_HST_BUF_CONSUMPTION-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_HST_BUF_CONSUMPTION-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTAM, internal->external for field LASTCHANGEDATETIME
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_PMMO_HST_BUF_CONSUMPTION-LASTCHANGEDATETIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_HST_BUF_CONSUMPTION-LASTCHANGEDATETIME.
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_HST_BUF_CONSUMPTION_STR, 
MANDT TYPE STRING,
BERID TYPE STRING,
GRPNR TYPE STRING,
S_REPOBJ TYPE STRING,
R_REPOBJ TYPE STRING,
PSPNR_ASSGD TYPE STRING,
RQMTOBJ_TOP TYPE STRING,
CHARG TYPE STRING,
S_CPUDT TYPE STRING,
S_SERNR TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
ISSQTY TYPE STRING,
MEINS TYPE STRING,
PEGISSUE TYPE STRING,
S_SGIND TYPE STRING,
LEADING_COLL_ORDER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMMO_HST_BUF_CONSUMPTION_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_HST_BUF_CONSUMPTION_STR-MANDT sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-BERID sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-GRPNR sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-S_REPOBJ sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-R_REPOBJ sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-PSPNR_ASSGD sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-RQMTOBJ_TOP sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-CHARG sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-S_CPUDT sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-S_SERNR sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-MATNR sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-WERKS sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-ISSQTY sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-MEINS sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-PEGISSUE sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-S_SGIND sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_STR-LEADING_COLL_ORDER sy-vline 
WA_PMMO_HST_BUF_CONSUMPTION_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.