ABAP Select data from SAP table RJHM1100TC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJHM1100TC 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 RJHM1100TC. 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 RJHM1100TC 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_RJHM1100TC TYPE STANDARD TABLE OF RJHM1100TC,
      WA_RJHM1100TC TYPE RJHM1100TC,
      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: <RJHM1100TC> TYPE RJHM1100TC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJHM1100TC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJHM1100TC
  INTO TABLE IT_RJHM1100TC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJHM1100TC
*  INTO TABLE @DATA(IT_RJHM1100TC2).
*--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_RJHM1100TC INDEX 1 INTO DATA(WA_RJHM1100TC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJHM1100TC ASSIGNING <RJHM1100TC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJHM1100TC>-VTNR = 1.
<RJHM1100TC>-VKORG = 1.
<RJHM1100TC>-VTWEG = 1.
<RJHM1100TC>-SPART = 1.
<RJHM1100TC>-VKBUR = 1.

ENDLOOP.

LOOP AT IT_RJHM1100TC INTO WA_RJHM1100TC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJHM1100TC-VKGRP, sy-vline,
  WA_RJHM1100TC-BESTIMMTER, sy-vline,
  WA_RJHM1100TC-ABSTYP, sy-vline,
  WA_RJHM1100TC-MENGE1, sy-vline,
  WA_RJHM1100TC-EINH1, sy-vline,
  WA_RJHM1100TC-MENGE2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJHM1100TC 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_RJHM1100TC 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_RJHM1100TC INTO WA_RJHM1100TC.


*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 ALPHA, internal->external for field VTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHM1100TC-VTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHM1100TC-VTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field EINH1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJHM1100TC-EINH1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHM1100TC-EINH1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field EINH2
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJHM1100TC-EINH2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHM1100TC-EINH2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field FMP_KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJHM1100TC-FMP_KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHM1100TC-FMP_KMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field E_BEDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHM1100TC-E_BEDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHM1100TC-E_BEDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field A_BEDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJHM1100TC-A_BEDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJHM1100TC-A_BEDNR.
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_RJHM1100TC_STR, 
VTNR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
BESTIMMTER TYPE STRING,
ABSTYP TYPE STRING,
MENGE1 TYPE STRING,
EINH1 TYPE STRING,
MENGE2 TYPE STRING,
EINH2 TYPE STRING,
UMSATZ TYPE STRING,
WEINH TYPE STRING,
RABATT TYPE STRING,
BONUS TYPE STRING,
FMPREIS TYPE STRING,
FMP_KPEIN TYPE STRING,
FMP_KMEIN TYPE STRING,
XRABAEN TYPE STRING,
ABSART TYPE STRING,
RABANP TYPE STRING,
E_BEDNR TYPE STRING,
A_BEDNR TYPE STRING,
AUSWAHL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJHM1100TC_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_RJHM1100TC_STR-VTNR sy-vline 
WA_RJHM1100TC_STR-VKORG sy-vline 
WA_RJHM1100TC_STR-VTWEG sy-vline 
WA_RJHM1100TC_STR-SPART sy-vline 
WA_RJHM1100TC_STR-VKBUR sy-vline 
WA_RJHM1100TC_STR-VKGRP sy-vline 
WA_RJHM1100TC_STR-BESTIMMTER sy-vline 
WA_RJHM1100TC_STR-ABSTYP sy-vline 
WA_RJHM1100TC_STR-MENGE1 sy-vline 
WA_RJHM1100TC_STR-EINH1 sy-vline 
WA_RJHM1100TC_STR-MENGE2 sy-vline 
WA_RJHM1100TC_STR-EINH2 sy-vline 
WA_RJHM1100TC_STR-UMSATZ sy-vline 
WA_RJHM1100TC_STR-WEINH sy-vline 
WA_RJHM1100TC_STR-RABATT sy-vline 
WA_RJHM1100TC_STR-BONUS sy-vline 
WA_RJHM1100TC_STR-FMPREIS sy-vline 
WA_RJHM1100TC_STR-FMP_KPEIN sy-vline 
WA_RJHM1100TC_STR-FMP_KMEIN sy-vline 
WA_RJHM1100TC_STR-XRABAEN sy-vline 
WA_RJHM1100TC_STR-ABSART sy-vline 
WA_RJHM1100TC_STR-RABANP sy-vline 
WA_RJHM1100TC_STR-E_BEDNR sy-vline 
WA_RJHM1100TC_STR-A_BEDNR sy-vline 
WA_RJHM1100TC_STR-AUSWAHL sy-vline      INTO ld_text SEPARATED BY SPACE.

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