ABAP Select data from SAP table RCJWI_DYN1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RCJWI_DYN1 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 RCJWI_DYN1. 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 RCJWI_DYN1 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_RCJWI_DYN1 TYPE STANDARD TABLE OF RCJWI_DYN1,
      WA_RCJWI_DYN1 TYPE RCJWI_DYN1,
      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: <RCJWI_DYN1> TYPE RCJWI_DYN1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RCJWI_DYN1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RCJWI_DYN1
  INTO TABLE IT_RCJWI_DYN1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCJWI_DYN1
*  INTO TABLE @DATA(IT_RCJWI_DYN12).
*--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_RCJWI_DYN1 INDEX 1 INTO DATA(WA_RCJWI_DYN12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RCJWI_DYN1 ASSIGNING <RCJWI_DYN1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCJWI_DYN1>-PSPID_PSP = 1.
<RCJWI_DYN1>-POST1_PSP = 1.
<RCJWI_DYN1>-POSID_PSP = 1.
<RCJWI_DYN1>-PSPID_SPS = 1.
<RCJWI_DYN1>-POST1_SPS = 1.

ENDLOOP.

LOOP AT IT_RCJWI_DYN1 INTO WA_RCJWI_DYN1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCJWI_DYN1-POSID_SPS, sy-vline,
  WA_RCJWI_DYN1-LTXA1, sy-vline,
  WA_RCJWI_DYN1-VORNR, sy-vline,
  WA_RCJWI_DYN1-UVORN, sy-vline,
  WA_RCJWI_DYN1-GLOBAL, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_RCJWI_DYN1 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_RCJWI_DYN1 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_RCJWI_DYN1 INTO WA_RCJWI_DYN1.


*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 ABPSN, internal->external for field PSPID_PSP
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_RCJWI_DYN1-PSPID_PSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCJWI_DYN1-PSPID_PSP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field POSID_PSP
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_RCJWI_DYN1-POSID_PSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCJWI_DYN1-POSID_PSP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PSPID_SPS
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_RCJWI_DYN1-PSPID_SPS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCJWI_DYN1-PSPID_SPS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field POSID_SPS
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_RCJWI_DYN1-POSID_SPS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCJWI_DYN1-POSID_SPS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RCJWI_DYN1-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCJWI_DYN1-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field UVORN
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RCJWI_DYN1-UVORN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCJWI_DYN1-UVORN.
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_RCJWI_DYN1_STR, 
PSPID_PSP TYPE STRING,
POST1_PSP TYPE STRING,
POSID_PSP TYPE STRING,
PSPID_SPS TYPE STRING,
POST1_SPS TYPE STRING,
POSID_SPS TYPE STRING,
LTXA1 TYPE STRING,
VORNR TYPE STRING,
UVORN TYPE STRING,
GLOBAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCJWI_DYN1_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_RCJWI_DYN1_STR-PSPID_PSP sy-vline 
WA_RCJWI_DYN1_STR-POST1_PSP sy-vline 
WA_RCJWI_DYN1_STR-POSID_PSP sy-vline 
WA_RCJWI_DYN1_STR-PSPID_SPS sy-vline 
WA_RCJWI_DYN1_STR-POST1_SPS sy-vline 
WA_RCJWI_DYN1_STR-POSID_SPS sy-vline 
WA_RCJWI_DYN1_STR-LTXA1 sy-vline 
WA_RCJWI_DYN1_STR-VORNR sy-vline 
WA_RCJWI_DYN1_STR-UVORN sy-vline 
WA_RCJWI_DYN1_STR-GLOBAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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