ABAP Select data from SAP table RJMGXVM into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJMGXVM 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 RJMGXVM. 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 RJMGXVM 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_RJMGXVM TYPE STANDARD TABLE OF RJMGXVM,
      WA_RJMGXVM TYPE RJMGXVM,
      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: <RJMGXVM> TYPE RJMGXVM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJMGXVM
*  INTO TABLE @DATA(IT_RJMGXVM2).
*--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_RJMGXVM INDEX 1 INTO DATA(WA_RJMGXVM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJMGXVM>-MK_LOEVM = 1.
<RJMGXVM>-MK_LOEKZ = 1.
<RJMGXVM>-ERFUSER = 1.
<RJMGXVM>-ERFDATE = 1.
<RJMGXVM>-ERFTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJMGXVM-AENUSER, sy-vline,
  WA_RJMGXVM-AENDATE, sy-vline,
  WA_RJMGXVM-AENTIME, sy-vline,
  WA_RJMGXVM-XNK, sy-vline,
  WA_RJMGXVM-KUKARR, sy-vline,
  WA_RJMGXVM-KONKAUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJMGXVM 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_RJMGXVM 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_RJMGXVM INTO WA_RJMGXVM.


*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 KUKARR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJMGXVM-KUKARR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJMGXVM-KUKARR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field K_OL_ME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJMGXVM-K_OL_ME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJMGXVM-K_OL_ME.
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_RJMGXVM_STR, 
MK_LOEVM TYPE STRING,
MK_LOEKZ TYPE STRING,
ERFUSER TYPE STRING,
ERFDATE TYPE STRING,
ERFTIME TYPE STRING,
AENUSER TYPE STRING,
AENDATE TYPE STRING,
AENTIME TYPE STRING,
XNK TYPE STRING,
KUKARR TYPE STRING,
KONKAUS TYPE STRING,
MK_XAGEN TYPE STRING,
MK_XSTR TYPE STRING,
MK_XPLAN TYPE STRING,
MK_XART TYPE STRING,
MK_ABRKAG TYPE STRING,
MKAGEN_GRU TYPE STRING,
AE TYPE STRING,
MK_DUB TYPE STRING,
MK_BON TYPE STRING,
XMAN TYPE STRING,
ZTEGR TYPE STRING,
TOL TYPE STRING,
RE_STELL TYPE STRING,
DRSTS TYPE STRING,
XORTSPR TYPE STRING,
VKBOF TYPE STRING,
BLART TYPE STRING,
BLANZ TYPE STRING,
ZLSCHB TYPE STRING,
K_ANZ TYPE STRING,
K_ANZ_ME TYPE STRING,
K_DL TYPE STRING,
K_DL_ME TYPE STRING,
K_SI TYPE STRING,
K_SI_ME TYPE STRING,
K_VER TYPE STRING,
K_VER_ME TYPE STRING,
K_WSP TYPE STRING,
K_WSP_ME TYPE STRING,
K_OL TYPE STRING,
K_OL_ME TYPE STRING,
XABSCHL TYPE STRING,
ABE TYPE STRING,
MAX_UNT TYPE STRING,
MAX_RDAT TYPE STRING,
MENGA TYPE STRING,
ARAB TYPE STRING,
RABA TYPE STRING,
RABSPERR TYPE STRING,
RANPASS TYPE STRING,
RANPASSL TYPE STRING,
QABR TYPE STRING,
B_AUSR TYPE STRING,
E_AUSR TYPE STRING,
REG_DAU TYPE STRING,
AB_TOL TYPE STRING,
ZLSCHA TYPE STRING,
FAKSA TYPE STRING,
EABR_NACHL TYPE STRING,
BEST_PR TYPE STRING,
PAR_ABS TYPE STRING,
AB_VOR TYPE STRING,
TO_WARN TYPE STRING,
MIN_GUT TYPE STRING,
MIN_LAST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJMGXVM_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_RJMGXVM_STR-MK_LOEVM sy-vline 
WA_RJMGXVM_STR-MK_LOEKZ sy-vline 
WA_RJMGXVM_STR-ERFUSER sy-vline 
WA_RJMGXVM_STR-ERFDATE sy-vline 
WA_RJMGXVM_STR-ERFTIME sy-vline 
WA_RJMGXVM_STR-AENUSER sy-vline 
WA_RJMGXVM_STR-AENDATE sy-vline 
WA_RJMGXVM_STR-AENTIME sy-vline 
WA_RJMGXVM_STR-XNK sy-vline 
WA_RJMGXVM_STR-KUKARR sy-vline 
WA_RJMGXVM_STR-KONKAUS sy-vline 
WA_RJMGXVM_STR-MK_XAGEN sy-vline 
WA_RJMGXVM_STR-MK_XSTR sy-vline 
WA_RJMGXVM_STR-MK_XPLAN sy-vline 
WA_RJMGXVM_STR-MK_XART sy-vline 
WA_RJMGXVM_STR-MK_ABRKAG sy-vline 
WA_RJMGXVM_STR-MKAGEN_GRU sy-vline 
WA_RJMGXVM_STR-AE sy-vline 
WA_RJMGXVM_STR-MK_DUB sy-vline 
WA_RJMGXVM_STR-MK_BON sy-vline 
WA_RJMGXVM_STR-XMAN sy-vline 
WA_RJMGXVM_STR-ZTEGR sy-vline 
WA_RJMGXVM_STR-TOL sy-vline 
WA_RJMGXVM_STR-RE_STELL sy-vline 
WA_RJMGXVM_STR-DRSTS sy-vline 
WA_RJMGXVM_STR-XORTSPR sy-vline 
WA_RJMGXVM_STR-VKBOF sy-vline 
WA_RJMGXVM_STR-BLART sy-vline 
WA_RJMGXVM_STR-BLANZ sy-vline 
WA_RJMGXVM_STR-ZLSCHB sy-vline 
WA_RJMGXVM_STR-K_ANZ sy-vline 
WA_RJMGXVM_STR-K_ANZ_ME sy-vline 
WA_RJMGXVM_STR-K_DL sy-vline 
WA_RJMGXVM_STR-K_DL_ME sy-vline 
WA_RJMGXVM_STR-K_SI sy-vline 
WA_RJMGXVM_STR-K_SI_ME sy-vline 
WA_RJMGXVM_STR-K_VER sy-vline 
WA_RJMGXVM_STR-K_VER_ME sy-vline 
WA_RJMGXVM_STR-K_WSP sy-vline 
WA_RJMGXVM_STR-K_WSP_ME sy-vline 
WA_RJMGXVM_STR-K_OL sy-vline 
WA_RJMGXVM_STR-K_OL_ME sy-vline 
WA_RJMGXVM_STR-XABSCHL sy-vline 
WA_RJMGXVM_STR-ABE sy-vline 
WA_RJMGXVM_STR-MAX_UNT sy-vline 
WA_RJMGXVM_STR-MAX_RDAT sy-vline 
WA_RJMGXVM_STR-MENGA sy-vline 
WA_RJMGXVM_STR-ARAB sy-vline 
WA_RJMGXVM_STR-RABA sy-vline 
WA_RJMGXVM_STR-RABSPERR sy-vline 
WA_RJMGXVM_STR-RANPASS sy-vline 
WA_RJMGXVM_STR-RANPASSL sy-vline 
WA_RJMGXVM_STR-QABR sy-vline 
WA_RJMGXVM_STR-B_AUSR sy-vline 
WA_RJMGXVM_STR-E_AUSR sy-vline 
WA_RJMGXVM_STR-REG_DAU sy-vline 
WA_RJMGXVM_STR-AB_TOL sy-vline 
WA_RJMGXVM_STR-ZLSCHA sy-vline 
WA_RJMGXVM_STR-FAKSA sy-vline 
WA_RJMGXVM_STR-EABR_NACHL sy-vline 
WA_RJMGXVM_STR-BEST_PR sy-vline 
WA_RJMGXVM_STR-PAR_ABS sy-vline 
WA_RJMGXVM_STR-AB_VOR sy-vline 
WA_RJMGXVM_STR-TO_WARN sy-vline 
WA_RJMGXVM_STR-MIN_GUT sy-vline 
WA_RJMGXVM_STR-MIN_LAST sy-vline      INTO ld_text SEPARATED BY SPACE.

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