ABAP Select data from SAP table J_3RF_WW_OPERATIONS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_3RF_WW_OPERATIONS 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 J_3RF_WW_OPERATIONS. 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 J_3RF_WW_OPERATIONS 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_J_3RF_WW_OPERATIONS TYPE STANDARD TABLE OF J_3RF_WW_OPERATIONS,
      WA_J_3RF_WW_OPERATIONS TYPE J_3RF_WW_OPERATIONS,
      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: <J_3RF_WW_OPERATIONS> TYPE J_3RF_WW_OPERATIONS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_3RF_WW_OPERATIONS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_3RF_WW_OPERATIONS
  INTO TABLE IT_J_3RF_WW_OPERATIONS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_3RF_WW_OPERATIONS
*  INTO TABLE @DATA(IT_J_3RF_WW_OPERATIONS2).
*--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_J_3RF_WW_OPERATIONS INDEX 1 INTO DATA(WA_J_3RF_WW_OPERATIONS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_3RF_WW_OPERATIONS ASSIGNING <J_3RF_WW_OPERATIONS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_3RF_WW_OPERATIONS>-TRCODE = 1.
<J_3RF_WW_OPERATIONS>-POSTDATE = 1.
<J_3RF_WW_OPERATIONS>-DOCDATE = 1.
<J_3RF_WW_OPERATIONS>-BWART = 1.
<J_3RF_WW_OPERATIONS>-MATNR = 1.

ENDLOOP.

LOOP AT IT_J_3RF_WW_OPERATIONS INTO WA_J_3RF_WW_OPERATIONS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_3RF_WW_OPERATIONS-WERKS, sy-vline,
  WA_J_3RF_WW_OPERATIONS-LGORT, sy-vline,
  WA_J_3RF_WW_OPERATIONS-CHARG, sy-vline,
  WA_J_3RF_WW_OPERATIONS-SAKNR, sy-vline,
  WA_J_3RF_WW_OPERATIONS-MM_KOSTL, sy-vline,
  WA_J_3RF_WW_OPERATIONS-MM_ORDER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_3RF_WW_OPERATIONS 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_J_3RF_WW_OPERATIONS 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_J_3RF_WW_OPERATIONS INTO WA_J_3RF_WW_OPERATIONS.


*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_J_3RF_WW_OPERATIONS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-SAKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-SAKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MM_KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-MM_KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-MM_KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MM_ORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-MM_ORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-MM_ORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PS_POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-PS_POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-PS_POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NPLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-NPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-NPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CAUFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-CAUFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-CAUFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field IAUFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-IAUFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-IAUFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-SEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field ASSET_MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-ASSET_MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-ASSET_MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ASSET_MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_3RF_WW_OPERATIONS-ASSET_MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_3RF_WW_OPERATIONS-ASSET_MEINS.
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_J_3RF_WW_OPERATIONS_STR, 
TRCODE TYPE STRING,
POSTDATE TYPE STRING,
DOCDATE TYPE STRING,
BWART TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
SAKNR TYPE STRING,
MM_KOSTL TYPE STRING,
MM_ORDER TYPE STRING,
PS_POSID TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,
EXASSET TYPE STRING,
NEWASSET TYPE STRING,
BWASL TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
TXT50 TYPE STRING,
NDJAR TYPE STRING,
NDPER TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
DMBTR TYPE STRING,
WAERS TYPE STRING,
MATKL TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
STORT TYPE STRING,
CAUFN TYPE STRING,
IAUFN TYPE STRING,
SEGMENT TYPE STRING,
NEWPERNR TYPE STRING,
LASTNAME TYPE STRING,
FIRSTNAME TYPE STRING,
MIDDLENAME TYPE STRING,
ASSET_MATNR TYPE STRING,
ASSET_MEINS TYPE STRING,
XSTIL TYPE STRING,
BWTAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_3RF_WW_OPERATIONS_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_J_3RF_WW_OPERATIONS_STR-TRCODE sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-POSTDATE sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-DOCDATE sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-BWART sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-MATNR sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-WERKS sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-LGORT sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-CHARG sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-SAKNR sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-MM_KOSTL sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-MM_ORDER sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-PS_POSID sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-NPLNR sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-VORNR sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-EXASSET sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-NEWASSET sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-BWASL sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-ANLN1 sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-ANLN2 sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-TXT50 sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-NDJAR sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-NDPER sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-MENGE sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-MEINS sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-DMBTR sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-WAERS sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-MATKL sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-BUKRS sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-GSBER sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-KOSTL sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-STORT sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-CAUFN sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-IAUFN sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-SEGMENT sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-NEWPERNR sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-LASTNAME sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-FIRSTNAME sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-MIDDLENAME sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-ASSET_MATNR sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-ASSET_MEINS sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-XSTIL sy-vline 
WA_J_3RF_WW_OPERATIONS_STR-BWTAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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