ABAP Select data from SAP table RJDVAWERK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJDVAWERK
*  INTO TABLE @DATA(IT_RJDVAWERK2).
*--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_RJDVAWERK INDEX 1 INTO DATA(WA_RJDVAWERK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJDVAWERK>-DRERZ = 1.
<RJDVAWERK>-PVA = 1.
<RJDVAWERK>-ERSCHDAT = 1.
<RJDVAWERK>-MANDT = 1.
<RJDVAWERK>-VAUSGB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJDVAWERK-DRKEI, sy-vline,
  WA_RJDVAWERK-VERFBKTAG, sy-vline,
  WA_RJDVAWERK-VERFBKZEIT, sy-vline,
  WA_RJDVAWERK-ANLIEFTAGS, sy-vline,
  WA_RJDVAWERK-ANLIEFERZS, sy-vline,
  WA_RJDVAWERK-ANLIEFTAGI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJDVAWERK 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_RJDVAWERK 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_RJDVAWERK INTO WA_RJDVAWERK.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field ABWBEZR_VT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJDVAWERK-ABWBEZR_VT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJDVAWERK-ABWBEZR_VT.
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_RJDVAWERK_STR, 
DRERZ TYPE STRING,
PVA TYPE STRING,
ERSCHDAT TYPE STRING,
MANDT TYPE STRING,
VAUSGB TYPE STRING,
DRKEI TYPE STRING,
VERFBKTAG TYPE STRING,
VERFBKZEIT TYPE STRING,
ANLIEFTAGS TYPE STRING,
ANLIEFERZS TYPE STRING,
ANLIEFTAGI TYPE STRING,
ANLIEFERZI TYPE STRING,
LIEFMENGE TYPE STRING,
MEINLIEF TYPE STRING,
LAGERORT TYPE STRING,
PKTVAGRP TYPE STRING,
VA_DRERZ TYPE STRING,
ABWBEZR_RH TYPE STRING,
ABWBEZR_VT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJDVAWERK_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_RJDVAWERK_STR-DRERZ sy-vline 
WA_RJDVAWERK_STR-PVA sy-vline 
WA_RJDVAWERK_STR-ERSCHDAT sy-vline 
WA_RJDVAWERK_STR-MANDT sy-vline 
WA_RJDVAWERK_STR-VAUSGB sy-vline 
WA_RJDVAWERK_STR-DRKEI sy-vline 
WA_RJDVAWERK_STR-VERFBKTAG sy-vline 
WA_RJDVAWERK_STR-VERFBKZEIT sy-vline 
WA_RJDVAWERK_STR-ANLIEFTAGS sy-vline 
WA_RJDVAWERK_STR-ANLIEFERZS sy-vline 
WA_RJDVAWERK_STR-ANLIEFTAGI sy-vline 
WA_RJDVAWERK_STR-ANLIEFERZI sy-vline 
WA_RJDVAWERK_STR-LIEFMENGE sy-vline 
WA_RJDVAWERK_STR-MEINLIEF sy-vline 
WA_RJDVAWERK_STR-LAGERORT sy-vline 
WA_RJDVAWERK_STR-PKTVAGRP sy-vline 
WA_RJDVAWERK_STR-VA_DRERZ sy-vline 
WA_RJDVAWERK_STR-ABWBEZR_RH sy-vline 
WA_RJDVAWERK_STR-ABWBEZR_VT sy-vline      INTO ld_text SEPARATED BY SPACE.

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