ABAP Select data from SAP table J_1BNFE_MATERIAL_LIN_OLD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1BNFE_MATERIAL_LIN_OLD 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_1BNFE_MATERIAL_LIN_OLD. 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_1BNFE_MATERIAL_LIN_OLD 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_1BNFE_MATERIAL_LIN_OLD TYPE STANDARD TABLE OF J_1BNFE_MATERIAL_LIN_OLD,
      WA_J_1BNFE_MATERIAL_LIN_OLD TYPE J_1BNFE_MATERIAL_LIN_OLD,
      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_1BNFE_MATERIAL_LIN_OLD> TYPE J_1BNFE_MATERIAL_LIN_OLD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1BNFE_MATERIAL_LIN_OLD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1BNFE_MATERIAL_LIN_OLD
  INTO TABLE IT_J_1BNFE_MATERIAL_LIN_OLD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1BNFE_MATERIAL_LIN_OLD
*  INTO TABLE @DATA(IT_J_1BNFE_MATERIAL_LIN_OLD2).
*--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_1BNFE_MATERIAL_LIN_OLD INDEX 1 INTO DATA(WA_J_1BNFE_MATERIAL_LIN_OLD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1BNFE_MATERIAL_LIN_OLD ASSIGNING <J_1BNFE_MATERIAL_LIN_OLD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1BNFE_MATERIAL_LIN_OLD>-XMLPOS = 1.
<J_1BNFE_MATERIAL_LIN_OLD>-EBELN = 1.
<J_1BNFE_MATERIAL_LIN_OLD>-EBELP = 1.
<J_1BNFE_MATERIAL_LIN_OLD>-MENGE = 1.
<J_1BNFE_MATERIAL_LIN_OLD>-MEINS = 1.

ENDLOOP.

LOOP AT IT_J_1BNFE_MATERIAL_LIN_OLD INTO WA_J_1BNFE_MATERIAL_LIN_OLD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1BNFE_MATERIAL_LIN_OLD-MEINS_ISO, sy-vline,
  WA_J_1BNFE_MATERIAL_LIN_OLD-NFNET, sy-vline,
  WA_J_1BNFE_MATERIAL_LIN_OLD-NFFRE, sy-vline,
  WA_J_1BNFE_MATERIAL_LIN_OLD-NFINS, sy-vline,
  WA_J_1BNFE_MATERIAL_LIN_OLD-NFOTH, sy-vline,
  WA_J_1BNFE_MATERIAL_LIN_OLD-NFDIS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1BNFE_MATERIAL_LIN_OLD 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_1BNFE_MATERIAL_LIN_OLD 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_1BNFE_MATERIAL_LIN_OLD INTO WA_J_1BNFE_MATERIAL_LIN_OLD.


*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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1BNFE_MATERIAL_LIN_OLD-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1BNFE_MATERIAL_LIN_OLD-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_1BNFE_MATERIAL_LIN_OLD-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1BNFE_MATERIAL_LIN_OLD-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CFOBR, internal->external for field CFOP
CALL FUNCTION 'CONVERSION_EXIT_CFOBR_OUTPUT'
  EXPORTING
    input =                      WA_J_1BNFE_MATERIAL_LIN_OLD-CFOP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1BNFE_MATERIAL_LIN_OLD-CFOP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN5, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_J_1BNFE_MATERIAL_LIN_OLD-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1BNFE_MATERIAL_LIN_OLD-MATNR.
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_1BNFE_MATERIAL_LIN_OLD_STR, 
XMLPOS TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
MEINS_ISO TYPE STRING,
NFNET TYPE STRING,
NFFRE TYPE STRING,
NFINS TYPE STRING,
NFOTH TYPE STRING,
NFDIS TYPE STRING,
WAERS TYPE STRING,
CFOP TYPE STRING,
MWSKZ TYPE STRING,
STATIT TYPE STRING,
MATNR TYPE STRING,
MATORG TYPE STRING,
FCI TYPE STRING,
NFICMSDESON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1BNFE_MATERIAL_LIN_OLD_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_1BNFE_MATERIAL_LIN_OLD_STR-XMLPOS sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-EBELN sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-EBELP sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-MENGE sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-MEINS sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-MEINS_ISO sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-NFNET sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-NFFRE sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-NFINS sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-NFOTH sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-NFDIS sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-WAERS sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-CFOP sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-MWSKZ sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-STATIT sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-MATNR sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-MATORG sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-FCI sy-vline 
WA_J_1BNFE_MATERIAL_LIN_OLD_STR-NFICMSDESON sy-vline      INTO ld_text SEPARATED BY SPACE.

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