ABAP Select data from SAP table RJLJGA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJLJGA
*  INTO TABLE @DATA(IT_RJLJGA2).
*--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_RJLJGA INDEX 1 INTO DATA(WA_RJLJGA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJLJGA>-VERM = 1.
<RJLJGA>-NAME_VM = 1.
<RJLJGA>-NAME_ZE = 1.
<RJLJGA>-VNR_REF = 1.
<RJLJGA>-EKORG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJLJGA-VNR, sy-vline,
  WA_RJLJGA-VTYP, sy-vline,
  WA_RJLJGA-GUELTIGAB, sy-vline,
  WA_RJLJGA-GUELTIGBIS, sy-vline,
  WA_RJLJGA-BEDART, sy-vline,
  WA_RJLJGA-BEDARTBEZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJLJGA 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_RJLJGA 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_RJLJGA INTO WA_RJLJGA.


*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 VERMK, internal->external for field VERM
CALL FUNCTION 'CONVERSION_EXIT_VERMK_OUTPUT'
  EXPORTING
    input =                      WA_RJLJGA-VERM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJLJGA-VERM.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field CPY_VNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJLJGA-CPY_VNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJLJGA-CPY_VNR.
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_RJLJGA_STR, 
VERM TYPE STRING,
NAME_VM TYPE STRING,
NAME_ZE TYPE STRING,
VNR_REF TYPE STRING,
EKORG TYPE STRING,
VNR TYPE STRING,
VTYP TYPE STRING,
GUELTIGAB TYPE STRING,
GUELTIGBIS TYPE STRING,
BEDART TYPE STRING,
BEDARTBEZ TYPE STRING,
SUB_DYNNR TYPE STRING,
BEDNR TYPE STRING,
LAST_BESNR TYPE STRING,
CPY_VNR TYPE STRING,
CPY_BEDNR TYPE STRING,
NEXT_BED TYPE STRING,
KTAAR TYPE STRING,
BEZ_VTYP TYPE STRING,
BEZ_VKORG TYPE STRING,
BEZ_VTWEG TYPE STRING,
BEZ_SPART TYPE STRING,
BEZ_EKORG TYPE STRING,
BEZ_BED TYPE STRING,
BEZ_VKBUR TYPE STRING,
BEZ_VKGRP TYPE STRING,
BEZ_UEART TYPE STRING,
BEZ_KALSK TYPE STRING,
BEZ_BEZKP TYPE STRING,
BEZ_BEZKB1 TYPE STRING,
BEZ_BEZKB2 TYPE STRING,
BEZ_ABRKB1 TYPE STRING,
BEZ_ABRKB2 TYPE STRING,
BEZ_ABRKP TYPE STRING,
BEZ_ZTERM TYPE STRING,
BEZ_KURST TYPE STRING,
BEZ_TACLGP TYPE STRING,
BEZ_VERART TYPE STRING,
BEZ_KTGRV TYPE STRING,
BEZ_BEDGR TYPE STRING,
BEZ_BO1SL TYPE STRING,
BEZ_BO2SL TYPE STRING,
BEZ_KTAAR TYPE STRING,
BEZ_VGRUP TYPE STRING,
BEZ_VOR_VNR TYPE STRING,
BEZ_VOR_BEDNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJLJGA_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_RJLJGA_STR-VERM sy-vline 
WA_RJLJGA_STR-NAME_VM sy-vline 
WA_RJLJGA_STR-NAME_ZE sy-vline 
WA_RJLJGA_STR-VNR_REF sy-vline 
WA_RJLJGA_STR-EKORG sy-vline 
WA_RJLJGA_STR-VNR sy-vline 
WA_RJLJGA_STR-VTYP sy-vline 
WA_RJLJGA_STR-GUELTIGAB sy-vline 
WA_RJLJGA_STR-GUELTIGBIS sy-vline 
WA_RJLJGA_STR-BEDART sy-vline 
WA_RJLJGA_STR-BEDARTBEZ sy-vline 
WA_RJLJGA_STR-SUB_DYNNR sy-vline 
WA_RJLJGA_STR-BEDNR sy-vline 
WA_RJLJGA_STR-LAST_BESNR sy-vline 
WA_RJLJGA_STR-CPY_VNR sy-vline 
WA_RJLJGA_STR-CPY_BEDNR sy-vline 
WA_RJLJGA_STR-NEXT_BED sy-vline 
WA_RJLJGA_STR-KTAAR sy-vline 
WA_RJLJGA_STR-BEZ_VTYP sy-vline 
WA_RJLJGA_STR-BEZ_VKORG sy-vline 
WA_RJLJGA_STR-BEZ_VTWEG sy-vline 
WA_RJLJGA_STR-BEZ_SPART sy-vline 
WA_RJLJGA_STR-BEZ_EKORG sy-vline 
WA_RJLJGA_STR-BEZ_BED sy-vline 
WA_RJLJGA_STR-BEZ_VKBUR sy-vline 
WA_RJLJGA_STR-BEZ_VKGRP sy-vline 
WA_RJLJGA_STR-BEZ_UEART sy-vline 
WA_RJLJGA_STR-BEZ_KALSK sy-vline 
WA_RJLJGA_STR-BEZ_BEZKP sy-vline 
WA_RJLJGA_STR-BEZ_BEZKB1 sy-vline 
WA_RJLJGA_STR-BEZ_BEZKB2 sy-vline 
WA_RJLJGA_STR-BEZ_ABRKB1 sy-vline 
WA_RJLJGA_STR-BEZ_ABRKB2 sy-vline 
WA_RJLJGA_STR-BEZ_ABRKP sy-vline 
WA_RJLJGA_STR-BEZ_ZTERM sy-vline 
WA_RJLJGA_STR-BEZ_KURST sy-vline 
WA_RJLJGA_STR-BEZ_TACLGP sy-vline 
WA_RJLJGA_STR-BEZ_VERART sy-vline 
WA_RJLJGA_STR-BEZ_KTGRV sy-vline 
WA_RJLJGA_STR-BEZ_BEDGR sy-vline 
WA_RJLJGA_STR-BEZ_BO1SL sy-vline 
WA_RJLJGA_STR-BEZ_BO2SL sy-vline 
WA_RJLJGA_STR-BEZ_KTAAR sy-vline 
WA_RJLJGA_STR-BEZ_VGRUP sy-vline 
WA_RJLJGA_STR-BEZ_VOR_VNR sy-vline 
WA_RJLJGA_STR-BEZ_VOR_BEDNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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