ABAP Select data from SAP table ROIJ02_DS_SPW_COMMON into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ROIJ02_DS_SPW_COMMON 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 ROIJ02_DS_SPW_COMMON. 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 ROIJ02_DS_SPW_COMMON 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_ROIJ02_DS_SPW_COMMON TYPE STANDARD TABLE OF ROIJ02_DS_SPW_COMMON,
      WA_ROIJ02_DS_SPW_COMMON TYPE ROIJ02_DS_SPW_COMMON,
      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: <ROIJ02_DS_SPW_COMMON> TYPE ROIJ02_DS_SPW_COMMON.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ROIJ02_DS_SPW_COMMON.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ROIJ02_DS_SPW_COMMON
  INTO TABLE IT_ROIJ02_DS_SPW_COMMON.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIJ02_DS_SPW_COMMON
*  INTO TABLE @DATA(IT_ROIJ02_DS_SPW_COMMON2).
*--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_ROIJ02_DS_SPW_COMMON INDEX 1 INTO DATA(WA_ROIJ02_DS_SPW_COMMON2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ROIJ02_DS_SPW_COMMON ASSIGNING <ROIJ02_DS_SPW_COMMON>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIJ02_DS_SPW_COMMON>-LOCID = 1.
<ROIJ02_DS_SPW_COMMON>-TSYST = 1.
<ROIJ02_DS_SPW_COMMON>-MATNR = 1.
<ROIJ02_DS_SPW_COMMON>-CHARG = 1.
<ROIJ02_DS_SPW_COMMON>-DATUM = 1.

ENDLOOP.

LOOP AT IT_ROIJ02_DS_SPW_COMMON INTO WA_ROIJ02_DS_SPW_COMMON.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIJ02_DS_SPW_COMMON-DOW, sy-vline,
  WA_ROIJ02_DS_SPW_COMMON-INTNO, sy-vline,
  WA_ROIJ02_DS_SPW_COMMON-BASE, sy-vline,
  WA_ROIJ02_DS_SPW_COMMON-IN, sy-vline,
  WA_ROIJ02_DS_SPW_COMMON-OUT, sy-vline,
  WA_ROIJ02_DS_SPW_COMMON-RDOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIJ02_DS_SPW_COMMON 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_ROIJ02_DS_SPW_COMMON 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_ROIJ02_DS_SPW_COMMON INTO WA_ROIJ02_DS_SPW_COMMON.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ROIJ02_DS_SPW_COMMON-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIJ02_DS_SPW_COMMON-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OIJDS, internal->external for field IN
CALL FUNCTION 'CONVERSION_EXIT_OIJDS_OUTPUT'
  EXPORTING
    input =                      WA_ROIJ02_DS_SPW_COMMON-IN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIJ02_DS_SPW_COMMON-IN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit OIJDS, internal->external for field OUT
CALL FUNCTION 'CONVERSION_EXIT_OIJDS_OUTPUT'
  EXPORTING
    input =                      WA_ROIJ02_DS_SPW_COMMON-OUT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIJ02_DS_SPW_COMMON-OUT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RNOMTK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIJ02_DS_SPW_COMMON-RNOMTK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIJ02_DS_SPW_COMMON-RNOMTK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INOMTK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIJ02_DS_SPW_COMMON-INOMTK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIJ02_DS_SPW_COMMON-INOMTK.
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_ROIJ02_DS_SPW_COMMON_STR, 
LOCID TYPE STRING,
TSYST TYPE STRING,
MATNR TYPE STRING,
CHARG TYPE STRING,
DATUM TYPE STRING,
DOW TYPE STRING,
INTNO TYPE STRING,
BASE TYPE STRING,
IN TYPE STRING,
OUT TYPE STRING,
RDOC TYPE STRING,
IDOC TYPE STRING,
RPROD TYPE STRING,
IPROD TYPE STRING,
RSCHED TYPE STRING,
ISCHED TYPE STRING,
RNOMSTAT TYPE STRING,
INOMSTAT TYPE STRING,
RBATCH TYPE STRING,
IBATCH TYPE STRING,
RNOMTK TYPE STRING,
INOMTK TYPE STRING,
RNOMIT TYPE STRING,
INOMIT TYPE STRING,
RACT TYPE STRING,
IACT TYPE STRING,
RTKT TYPE STRING,
ITKT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIJ02_DS_SPW_COMMON_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_ROIJ02_DS_SPW_COMMON_STR-LOCID sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-TSYST sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-MATNR sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-CHARG sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-DATUM sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-DOW sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-INTNO sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-BASE sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-IN sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-OUT sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-RDOC sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-IDOC sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-RPROD sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-IPROD sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-RSCHED sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-ISCHED sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-RNOMSTAT sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-INOMSTAT sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-RBATCH sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-IBATCH sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-RNOMTK sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-INOMTK sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-RNOMIT sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-INOMIT sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-RACT sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-IACT sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-RTKT sy-vline 
WA_ROIJ02_DS_SPW_COMMON_STR-ITKT sy-vline      INTO ld_text SEPARATED BY SPACE.

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