ABAP Select data from SAP table RJD01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJD01 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 RJD01. 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 RJD01 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_RJD01 TYPE STANDARD TABLE OF RJD01,
      WA_RJD01 TYPE RJD01,
      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: <RJD01> TYPE RJD01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJD01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJD01
  INTO TABLE IT_RJD01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJD01
*  INTO TABLE @DATA(IT_RJD012).
*--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_RJD01 INDEX 1 INTO DATA(WA_RJD012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJD01 ASSIGNING <RJD01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJD01>-TEXT001 = 1.
<RJD01>-TEXT002 = 1.
<RJD01>-VARTYPST = 1.
<RJD01>-VARTYPVF = 1.
<RJD01>-VARTYPAF = 1.

ENDLOOP.

LOOP AT IT_RJD01 INTO WA_RJD01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJD01-VARTYPF1, sy-vline,
  WA_RJD01-VARTYPF2, sy-vline,
  WA_RJD01-STDINEIP, sy-vline,
  WA_RJD01-TAGINEIP, sy-vline,
  WA_RJD01-WOINEIP, sy-vline,
  WA_RJD01-MOINEIP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJD01 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_RJD01 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_RJD01 INTO WA_RJD01.


*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 PVAGR_REF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJD01-PVAGR_REF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJD01-PVAGR_REF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PVA_REF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJD01-PVA_REF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJD01-PVA_REF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DRERZ_REF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJD01-DRERZ_REF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJD01-DRERZ_REF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR_REF
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RJD01-MATNR_REF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJD01-MATNR_REF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ISMMPGNGRP_REF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJD01-ISMMPGNGRP_REF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJD01-ISMMPGNGRP_REF.
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_RJD01_STR, 
TEXT001 TYPE STRING,
TEXT002 TYPE STRING,
VARTYPST TYPE STRING,
VARTYPVF TYPE STRING,
VARTYPAF TYPE STRING,
VARTYPF1 TYPE STRING,
VARTYPF2 TYPE STRING,
STDINEIP TYPE STRING,
TAGINEIP TYPE STRING,
WOINEIP TYPE STRING,
MOINEIP TYPE STRING,
XFTKOLL TYPE STRING,
XSTD TYPE STRING,
XVFT TYPE STRING,
XAFT TYPE STRING,
X1NFT TYPE STRING,
X2NFT TYPE STRING,
PVAGR_REF TYPE STRING,
PVA_REF TYPE STRING,
DRERZ_REF TYPE STRING,
MATNR_REF TYPE STRING,
ISMMPGNGRP_REF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJD01_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_RJD01_STR-TEXT001 sy-vline 
WA_RJD01_STR-TEXT002 sy-vline 
WA_RJD01_STR-VARTYPST sy-vline 
WA_RJD01_STR-VARTYPVF sy-vline 
WA_RJD01_STR-VARTYPAF sy-vline 
WA_RJD01_STR-VARTYPF1 sy-vline 
WA_RJD01_STR-VARTYPF2 sy-vline 
WA_RJD01_STR-STDINEIP sy-vline 
WA_RJD01_STR-TAGINEIP sy-vline 
WA_RJD01_STR-WOINEIP sy-vline 
WA_RJD01_STR-MOINEIP sy-vline 
WA_RJD01_STR-XFTKOLL sy-vline 
WA_RJD01_STR-XSTD sy-vline 
WA_RJD01_STR-XVFT sy-vline 
WA_RJD01_STR-XAFT sy-vline 
WA_RJD01_STR-X1NFT sy-vline 
WA_RJD01_STR-X2NFT sy-vline 
WA_RJD01_STR-PVAGR_REF sy-vline 
WA_RJD01_STR-PVA_REF sy-vline 
WA_RJD01_STR-DRERZ_REF sy-vline 
WA_RJD01_STR-MATNR_REF sy-vline 
WA_RJD01_STR-ISMMPGNGRP_REF sy-vline      INTO ld_text SEPARATED BY SPACE.

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