ABAP Select data from SAP table /ISDFPS/S_BI_FOR_REL_MPO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/S_BI_FOR_REL_MPO
*  INTO TABLE @DATA(IT_/ISDFPS/S_BI_FOR_REL_MPO2).
*--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_/ISDFPS/S_BI_FOR_REL_MPO INDEX 1 INTO DATA(WA_/ISDFPS/S_BI_FOR_REL_MPO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/S_BI_FOR_REL_MPO>-PLVAR = 1.
</ISDFPS/S_BI_FOR_REL_MPO>-OTYPE = 1.
</ISDFPS/S_BI_FOR_REL_MPO>-OBJID = 1.
</ISDFPS/S_BI_FOR_REL_MPO>-BEGDA = 1.
</ISDFPS/S_BI_FOR_REL_MPO>-ENDDA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/S_BI_FOR_REL_MPO-AEDTM, sy-vline,
  WA_/ISDFPS/S_BI_FOR_REL_MPO-UNAME, sy-vline,
  WA_/ISDFPS/S_BI_FOR_REL_MPO-REASN, sy-vline,
  WA_/ISDFPS/S_BI_FOR_REL_MPO-HISTO, sy-vline,
  WA_/ISDFPS/S_BI_FOR_REL_MPO-RELOC_ID, sy-vline,
  WA_/ISDFPS/S_BI_FOR_REL_MPO-RELOC_SEQ_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/S_BI_FOR_REL_MPO 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_/ISDFPS/S_BI_FOR_REL_MPO 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_/ISDFPS/S_BI_FOR_REL_MPO INTO WA_/ISDFPS/S_BI_FOR_REL_MPO.


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

*Conversion exit MATN1, internal->external for field MPO
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/S_BI_FOR_REL_MPO-MPO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/S_BI_FOR_REL_MPO-MPO.
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_/ISDFPS/S_BI_FOR_REL_MPO_STR, 
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
REASN TYPE STRING,
HISTO TYPE STRING,
RELOC_ID TYPE STRING,
RELOC_SEQ_ID TYPE STRING,
PNGUID TYPE STRING,
FORCEM_CNT TYPE STRING,
PNTYPE TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
ROUTE TYPE STRING,
MBDAT TYPE STRING,
DAT_SP TYPE STRING,
RELSEQ_TYPE TYPE STRING,
VSBED TYPE STRING,
DGUID TYPE STRING,
OPERATION_ID TYPE STRING,
CON_ID TYPE STRING,
OBJID_COM TYPE STRING,
PROVIDER_MAT TYPE STRING,
PROVIDER_PER TYPE STRING,
BEGDA_1985 TYPE STRING,
ENDDA_1985 TYPE STRING,
RELOC_SEQ_DONE TYPE STRING,
ISTAT_1985 TYPE STRING,
RELOC_GPLUS_DAY TYPE STRING,
RELOC_GPLUS_TIME TYPE STRING,
MPO TYPE STRING,
RIC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/S_BI_FOR_REL_MPO_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_/ISDFPS/S_BI_FOR_REL_MPO_STR-PLVAR sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-OTYPE sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-OBJID sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-BEGDA sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-ENDDA sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-AEDTM sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-UNAME sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-REASN sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-HISTO sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-RELOC_ID sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-RELOC_SEQ_ID sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-PNGUID sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-FORCEM_CNT sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-PNTYPE sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-MENGE sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-MEINS sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-ROUTE sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-MBDAT sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-DAT_SP sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-RELSEQ_TYPE sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-VSBED sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-DGUID sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-OPERATION_ID sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-CON_ID sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-OBJID_COM sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-PROVIDER_MAT sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-PROVIDER_PER sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-BEGDA_1985 sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-ENDDA_1985 sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-RELOC_SEQ_DONE sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-ISTAT_1985 sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-RELOC_GPLUS_DAY sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-RELOC_GPLUS_TIME sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-MPO sy-vline 
WA_/ISDFPS/S_BI_FOR_REL_MPO_STR-RIC sy-vline      INTO ld_text SEPARATED BY SPACE.

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