ABAP Select data from SAP table MPO_REPORT_WRITER into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MPO_REPORT_WRITER
*  INTO TABLE @DATA(IT_MPO_REPORT_WRITER2).
*--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_MPO_REPORT_WRITER INDEX 1 INTO DATA(WA_MPO_REPORT_WRITER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MPO_REPORT_WRITER>-KOKRS = 1.
<MPO_REPORT_WRITER>-GJAHR = 1.
<MPO_REPORT_WRITER>-PERBL = 1.
<MPO_REPORT_WRITER>-PERBL_TO = 1.
<MPO_REPORT_WRITER>-VERSA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MPO_REPORT_WRITER-VERSP, sy-vline,
  WA_MPO_REPORT_WRITER-VALUT, sy-vline,
  WA_MPO_REPORT_WRITER-KSTAR, sy-vline,
  WA_MPO_REPORT_WRITER-KSTAR_TO, sy-vline,
  WA_MPO_REPORT_WRITER-KSTAR_SET, sy-vline,
  WA_MPO_REPORT_WRITER-KSTAR_SETX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MPO_REPORT_WRITER 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_MPO_REPORT_WRITER 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_MPO_REPORT_WRITER INTO WA_MPO_REPORT_WRITER.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_MPO_REPORT_WRITER-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPO_REPORT_WRITER-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPO_REPORT_WRITER-VERSA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPO_REPORT_WRITER-VERSA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPO_REPORT_WRITER-VERSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPO_REPORT_WRITER-VERSP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KSTAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPO_REPORT_WRITER-KSTAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPO_REPORT_WRITER-KSTAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KSTAR_TO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPO_REPORT_WRITER-KSTAR_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPO_REPORT_WRITER-KSTAR_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPO_REPORT_WRITER-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPO_REPORT_WRITER-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL_TO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPO_REPORT_WRITER-KOSTL_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPO_REPORT_WRITER-KOSTL_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPO_REPORT_WRITER-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPO_REPORT_WRITER-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR_TO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPO_REPORT_WRITER-AUFNR_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPO_REPORT_WRITER-AUFNR_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFEX
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPO_REPORT_WRITER-AUFEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPO_REPORT_WRITER-AUFEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRZNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPO_REPORT_WRITER-PRZNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPO_REPORT_WRITER-PRZNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRZNR_TO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPO_REPORT_WRITER-PRZNR_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPO_REPORT_WRITER-PRZNR_TO.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABPSN, internal->external for field POSID_TO
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_MPO_REPORT_WRITER-POSID_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPO_REPORT_WRITER-POSID_TO.
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_MPO_REPORT_WRITER_STR, 
KOKRS TYPE STRING,
GJAHR TYPE STRING,
PERBL TYPE STRING,
PERBL_TO TYPE STRING,
VERSA TYPE STRING,
VERSP TYPE STRING,
VALUT TYPE STRING,
KSTAR TYPE STRING,
KSTAR_TO TYPE STRING,
KSTAR_SET TYPE STRING,
KSTAR_SETX TYPE STRING,
KOSTL TYPE STRING,
KOSTL_TO TYPE STRING,
KOSTL_SET TYPE STRING,
KOSTL_SETX TYPE STRING,
AUFNR TYPE STRING,
AUFNR_TO TYPE STRING,
AUFNR_SET TYPE STRING,
AUFNR_SETX TYPE STRING,
AUFEX TYPE STRING,
PRZNR TYPE STRING,
PRZNR_TO TYPE STRING,
PRZNR_SET TYPE STRING,
PRZNR_SETX TYPE STRING,
LSTAR TYPE STRING,
LSTAR_TO TYPE STRING,
LSTAR_SET TYPE STRING,
LSTAR_SETX TYPE STRING,
STAGR TYPE STRING,
STAGR_TO TYPE STRING,
STAGR_SET TYPE STRING,
STAGR_SETX TYPE STRING,
BUKRS TYPE STRING,
BUKRS_TO TYPE STRING,
BUKRS_SET TYPE STRING,
BUKRS_SETX TYPE STRING,
GSBER TYPE STRING,
GSBER_TO TYPE STRING,
GSBER_SET TYPE STRING,
GSBER_SETX TYPE STRING,
FKBER TYPE STRING,
FKBER_TO TYPE STRING,
FKBER_SET TYPE STRING,
FKBER_SETX TYPE STRING,
POSID TYPE STRING,
POSID_TO TYPE STRING,
POSID_SET TYPE STRING,
POSID_SETX TYPE STRING,
POSKI TYPE STRING,
POST1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MPO_REPORT_WRITER_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_MPO_REPORT_WRITER_STR-KOKRS sy-vline 
WA_MPO_REPORT_WRITER_STR-GJAHR sy-vline 
WA_MPO_REPORT_WRITER_STR-PERBL sy-vline 
WA_MPO_REPORT_WRITER_STR-PERBL_TO sy-vline 
WA_MPO_REPORT_WRITER_STR-VERSA sy-vline 
WA_MPO_REPORT_WRITER_STR-VERSP sy-vline 
WA_MPO_REPORT_WRITER_STR-VALUT sy-vline 
WA_MPO_REPORT_WRITER_STR-KSTAR sy-vline 
WA_MPO_REPORT_WRITER_STR-KSTAR_TO sy-vline 
WA_MPO_REPORT_WRITER_STR-KSTAR_SET sy-vline 
WA_MPO_REPORT_WRITER_STR-KSTAR_SETX sy-vline 
WA_MPO_REPORT_WRITER_STR-KOSTL sy-vline 
WA_MPO_REPORT_WRITER_STR-KOSTL_TO sy-vline 
WA_MPO_REPORT_WRITER_STR-KOSTL_SET sy-vline 
WA_MPO_REPORT_WRITER_STR-KOSTL_SETX sy-vline 
WA_MPO_REPORT_WRITER_STR-AUFNR sy-vline 
WA_MPO_REPORT_WRITER_STR-AUFNR_TO sy-vline 
WA_MPO_REPORT_WRITER_STR-AUFNR_SET sy-vline 
WA_MPO_REPORT_WRITER_STR-AUFNR_SETX sy-vline 
WA_MPO_REPORT_WRITER_STR-AUFEX sy-vline 
WA_MPO_REPORT_WRITER_STR-PRZNR sy-vline 
WA_MPO_REPORT_WRITER_STR-PRZNR_TO sy-vline 
WA_MPO_REPORT_WRITER_STR-PRZNR_SET sy-vline 
WA_MPO_REPORT_WRITER_STR-PRZNR_SETX sy-vline 
WA_MPO_REPORT_WRITER_STR-LSTAR sy-vline 
WA_MPO_REPORT_WRITER_STR-LSTAR_TO sy-vline 
WA_MPO_REPORT_WRITER_STR-LSTAR_SET sy-vline 
WA_MPO_REPORT_WRITER_STR-LSTAR_SETX sy-vline 
WA_MPO_REPORT_WRITER_STR-STAGR sy-vline 
WA_MPO_REPORT_WRITER_STR-STAGR_TO sy-vline 
WA_MPO_REPORT_WRITER_STR-STAGR_SET sy-vline 
WA_MPO_REPORT_WRITER_STR-STAGR_SETX sy-vline 
WA_MPO_REPORT_WRITER_STR-BUKRS sy-vline 
WA_MPO_REPORT_WRITER_STR-BUKRS_TO sy-vline 
WA_MPO_REPORT_WRITER_STR-BUKRS_SET sy-vline 
WA_MPO_REPORT_WRITER_STR-BUKRS_SETX sy-vline 
WA_MPO_REPORT_WRITER_STR-GSBER sy-vline 
WA_MPO_REPORT_WRITER_STR-GSBER_TO sy-vline 
WA_MPO_REPORT_WRITER_STR-GSBER_SET sy-vline 
WA_MPO_REPORT_WRITER_STR-GSBER_SETX sy-vline 
WA_MPO_REPORT_WRITER_STR-FKBER sy-vline 
WA_MPO_REPORT_WRITER_STR-FKBER_TO sy-vline 
WA_MPO_REPORT_WRITER_STR-FKBER_SET sy-vline 
WA_MPO_REPORT_WRITER_STR-FKBER_SETX sy-vline 
WA_MPO_REPORT_WRITER_STR-POSID sy-vline 
WA_MPO_REPORT_WRITER_STR-POSID_TO sy-vline 
WA_MPO_REPORT_WRITER_STR-POSID_SET sy-vline 
WA_MPO_REPORT_WRITER_STR-POSID_SETX sy-vline 
WA_MPO_REPORT_WRITER_STR-POSKI sy-vline 
WA_MPO_REPORT_WRITER_STR-POST1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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