ABAP Select data from SAP table RELS_PR_MASTERDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RELS_PR_MASTERDATA
*  INTO TABLE @DATA(IT_RELS_PR_MASTERDATA2).
*--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_RELS_PR_MASTERDATA INDEX 1 INTO DATA(WA_RELS_PR_MASTERDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RELS_PR_MASTERDATA>-BUKRS = 1.
<RELS_PR_MASTERDATA>-SWENR = 1.
<RELS_PR_MASTERDATA>-SGRNR = 1.
<RELS_PR_MASTERDATA>-XGRTXT = 1.
<RELS_PR_MASTERDATA>-SGRUNDB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RELS_PR_MASTERDATA-RGRNART, sy-vline,
  WA_RELS_PR_MASTERDATA-BDMQMB1, sy-vline,
  WA_RELS_PR_MASTERDATA-BDMQMB2, sy-vline,
  WA_RELS_PR_MASTERDATA-BDNRWERT, sy-vline,
  WA_RELS_PR_MASTERDATA-BDNWERT, sy-vline,
  WA_RELS_PR_MASTERDATA-DBDNWERT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RELS_PR_MASTERDATA 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_RELS_PR_MASTERDATA 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_RELS_PR_MASTERDATA INTO WA_RELS_PR_MASTERDATA.


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

*Conversion exit SGRNR, internal->external for field SGRNR
CALL FUNCTION 'CONVERSION_EXIT_SGRNR_OUTPUT'
  EXPORTING
    input =                      WA_RELS_PR_MASTERDATA-SGRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RELS_PR_MASTERDATA-SGRNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit CUNIT, internal->external for field LEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RELS_PR_MASTERDATA-LEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RELS_PR_MASTERDATA-LEINS.
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_RELS_PR_MASTERDATA_STR, 
BUKRS TYPE STRING,
SWENR TYPE STRING,
SGRNR TYPE STRING,
XGRTXT TYPE STRING,
SGRUNDB TYPE STRING,
RGRNART TYPE STRING,
BDMQMB1 TYPE STRING,
BDMQMB2 TYPE STRING,
BDNRWERT TYPE STRING,
BDNWERT TYPE STRING,
DBDNWERT TYPE STRING,
RBEPLAN TYPE STRING,
DBEPLAN TYPE STRING,
XNUTZGRU TYPE STRING,
NZGRZ TYPE STRING,
NZGFZ TYPE STRING,
NZBMZ TYPE STRING,
NTGRZ TYPE STRING,
NTGFZ TYPE STRING,
NTBMZ TYPE STRING,
JVORKAUF TYPE STRING,
JAUSNAHM TYPE STRING,
JGRUNDW TYPE STRING,
JUEBERS TYPE STRING,
RNBPLAN TYPE STRING,
KOSTL TYPE STRING,
SGRART TYPE STRING,
SGRQAL TYPE STRING,
SGRFRM TYPE STRING,
SGRGZS TYPE STRING,
PRCTR TYPE STRING,
DWIRTUB TYPE STRING,
DVERKAUF TYPE STRING,
SUNUTZA TYPE STRING,
JUNUTZA TYPE STRING,
PROFL TYPE STRING,
KOKRS TYPE STRING,
DVRKPLAN TYPE STRING,
INTRENO TYPE STRING,
GSBER TYPE STRING,
TXJCD TYPE STRING,
BERGRP TYPE STRING,
XGEMARK TYPE STRING,
NFLURNR TYPE STRING,
XFLURST TYPE STRING,
BRFLURST TYPE STRING,
JERBBAU TYPE STRING,
GEMEINDE TYPE STRING,
ZULBAUH TYPE STRING,
LEINS TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RELS_PR_MASTERDATA_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_RELS_PR_MASTERDATA_STR-BUKRS sy-vline 
WA_RELS_PR_MASTERDATA_STR-SWENR sy-vline 
WA_RELS_PR_MASTERDATA_STR-SGRNR sy-vline 
WA_RELS_PR_MASTERDATA_STR-XGRTXT sy-vline 
WA_RELS_PR_MASTERDATA_STR-SGRUNDB sy-vline 
WA_RELS_PR_MASTERDATA_STR-RGRNART sy-vline 
WA_RELS_PR_MASTERDATA_STR-BDMQMB1 sy-vline 
WA_RELS_PR_MASTERDATA_STR-BDMQMB2 sy-vline 
WA_RELS_PR_MASTERDATA_STR-BDNRWERT sy-vline 
WA_RELS_PR_MASTERDATA_STR-BDNWERT sy-vline 
WA_RELS_PR_MASTERDATA_STR-DBDNWERT sy-vline 
WA_RELS_PR_MASTERDATA_STR-RBEPLAN sy-vline 
WA_RELS_PR_MASTERDATA_STR-DBEPLAN sy-vline 
WA_RELS_PR_MASTERDATA_STR-XNUTZGRU sy-vline 
WA_RELS_PR_MASTERDATA_STR-NZGRZ sy-vline 
WA_RELS_PR_MASTERDATA_STR-NZGFZ sy-vline 
WA_RELS_PR_MASTERDATA_STR-NZBMZ sy-vline 
WA_RELS_PR_MASTERDATA_STR-NTGRZ sy-vline 
WA_RELS_PR_MASTERDATA_STR-NTGFZ sy-vline 
WA_RELS_PR_MASTERDATA_STR-NTBMZ sy-vline 
WA_RELS_PR_MASTERDATA_STR-JVORKAUF sy-vline 
WA_RELS_PR_MASTERDATA_STR-JAUSNAHM sy-vline 
WA_RELS_PR_MASTERDATA_STR-JGRUNDW sy-vline 
WA_RELS_PR_MASTERDATA_STR-JUEBERS sy-vline 
WA_RELS_PR_MASTERDATA_STR-RNBPLAN sy-vline 
WA_RELS_PR_MASTERDATA_STR-KOSTL sy-vline 
WA_RELS_PR_MASTERDATA_STR-SGRART sy-vline 
WA_RELS_PR_MASTERDATA_STR-SGRQAL sy-vline 
WA_RELS_PR_MASTERDATA_STR-SGRFRM sy-vline 
WA_RELS_PR_MASTERDATA_STR-SGRGZS sy-vline 
WA_RELS_PR_MASTERDATA_STR-PRCTR sy-vline 
WA_RELS_PR_MASTERDATA_STR-DWIRTUB sy-vline 
WA_RELS_PR_MASTERDATA_STR-DVERKAUF sy-vline 
WA_RELS_PR_MASTERDATA_STR-SUNUTZA sy-vline 
WA_RELS_PR_MASTERDATA_STR-JUNUTZA sy-vline 
WA_RELS_PR_MASTERDATA_STR-PROFL sy-vline 
WA_RELS_PR_MASTERDATA_STR-KOKRS sy-vline 
WA_RELS_PR_MASTERDATA_STR-DVRKPLAN sy-vline 
WA_RELS_PR_MASTERDATA_STR-INTRENO sy-vline 
WA_RELS_PR_MASTERDATA_STR-GSBER sy-vline 
WA_RELS_PR_MASTERDATA_STR-TXJCD sy-vline 
WA_RELS_PR_MASTERDATA_STR-BERGRP sy-vline 
WA_RELS_PR_MASTERDATA_STR-XGEMARK sy-vline 
WA_RELS_PR_MASTERDATA_STR-NFLURNR sy-vline 
WA_RELS_PR_MASTERDATA_STR-XFLURST sy-vline 
WA_RELS_PR_MASTERDATA_STR-BRFLURST sy-vline 
WA_RELS_PR_MASTERDATA_STR-JERBBAU sy-vline 
WA_RELS_PR_MASTERDATA_STR-GEMEINDE sy-vline 
WA_RELS_PR_MASTERDATA_STR-ZULBAUH sy-vline 
WA_RELS_PR_MASTERDATA_STR-LEINS sy-vline 
WA_RELS_PR_MASTERDATA_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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