ABAP Select data from SAP table J1B_NF_XML_L1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J1B_NF_XML_L1 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 J1B_NF_XML_L1. 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 J1B_NF_XML_L1 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_J1B_NF_XML_L1 TYPE STANDARD TABLE OF J1B_NF_XML_L1,
      WA_J1B_NF_XML_L1 TYPE J1B_NF_XML_L1,
      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: <J1B_NF_XML_L1> TYPE J1B_NF_XML_L1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J1B_NF_XML_L1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J1B_NF_XML_L1
  INTO TABLE IT_J1B_NF_XML_L1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J1B_NF_XML_L1
*  INTO TABLE @DATA(IT_J1B_NF_XML_L12).
*--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_J1B_NF_XML_L1 INDEX 1 INTO DATA(WA_J1B_NF_XML_L12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J1B_NF_XML_L1 ASSIGNING <J1B_NF_XML_L1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J1B_NF_XML_L1>-L1_ICMS = 1.
<J1B_NF_XML_L1>-L1_00_ORIG = 1.
<J1B_NF_XML_L1>-L1_00_CST = 1.
<J1B_NF_XML_L1>-L1_00_MODBC = 1.
<J1B_NF_XML_L1>-L1_00_VBC = 1.

ENDLOOP.

LOOP AT IT_J1B_NF_XML_L1 INTO WA_J1B_NF_XML_L1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J1B_NF_XML_L1-L1_00_PICMS, sy-vline,
  WA_J1B_NF_XML_L1-L1_00_VICMS, sy-vline,
  WA_J1B_NF_XML_L1-L1_10_ORIG, sy-vline,
  WA_J1B_NF_XML_L1-L1_10_CST, sy-vline,
  WA_J1B_NF_XML_L1-L1_10_MODBC, sy-vline,
  WA_J1B_NF_XML_L1-L1_10_VBC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J1B_NF_XML_L1 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_J1B_NF_XML_L1 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_J1B_NF_XML_L1 INTO WA_J1B_NF_XML_L1.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_J1B_NF_XML_L1_STR, 
L1_ICMS TYPE STRING,
L1_00_ORIG TYPE STRING,
L1_00_CST TYPE STRING,
L1_00_MODBC TYPE STRING,
L1_00_VBC TYPE STRING,
L1_00_PICMS TYPE STRING,
L1_00_VICMS TYPE STRING,
L1_10_ORIG TYPE STRING,
L1_10_CST TYPE STRING,
L1_10_MODBC TYPE STRING,
L1_10_VBC TYPE STRING,
L1_10_PICMS TYPE STRING,
L1_10_VICMS TYPE STRING,
L1_10_MODBCST TYPE STRING,
L1_10_PMVAST TYPE STRING,
L1_10_PREDBCST TYPE STRING,
L1_10_VBCST TYPE STRING,
L1_10_PICMSST TYPE STRING,
L1_10_VICMSST TYPE STRING,
L1_20_ORIG TYPE STRING,
L1_20_CST TYPE STRING,
L1_20_MODBC TYPE STRING,
L1_20_PREDBC TYPE STRING,
L1_20_VBC TYPE STRING,
L1_20_PICMS TYPE STRING,
L1_20_VICMS TYPE STRING,
L1_30_ORIG TYPE STRING,
L1_30_CST TYPE STRING,
L1_30_MODBCST TYPE STRING,
L1_30_PMVAST TYPE STRING,
L1_30_PREDBCST TYPE STRING,
L1_30_VBCST TYPE STRING,
L1_30_PICMSST TYPE STRING,
L1_30_VICMSST TYPE STRING,
L1_40_ORIG TYPE STRING,
L1_40_CST TYPE STRING,
L1_51_ORIG TYPE STRING,
L1_51_CST TYPE STRING,
L1_51_MODBC TYPE STRING,
L1_51_PREDBC TYPE STRING,
L1_51_VBC TYPE STRING,
L1_51_PICMS TYPE STRING,
L1_51_VICMS TYPE STRING,
L1_60_ORIG TYPE STRING,
L1_60_CST TYPE STRING,
L1_60_VBCST TYPE STRING,
L1_60_VICMSST TYPE STRING,
L1_70_ORIG TYPE STRING,
L1_70_CST TYPE STRING,
L1_70_MODBC TYPE STRING,
L1_70_PREDBC TYPE STRING,
L1_70_VBC TYPE STRING,
L1_70_PICMS TYPE STRING,
L1_70_VICMS TYPE STRING,
L1_70_MODBCST TYPE STRING,
L1_70_PMVAST TYPE STRING,
L1_70_PREDBCST TYPE STRING,
L1_70_VBCST TYPE STRING,
L1_70_PICMSST TYPE STRING,
L1_70_VICMSST TYPE STRING,
L1_90_ORIG TYPE STRING,
L1_90_CST TYPE STRING,
L1_90_MODBC TYPE STRING,
L1_90_PREDBC TYPE STRING,
L1_90_VBC TYPE STRING,
L1_90_PICMS TYPE STRING,
L1_90_VICMS TYPE STRING,
L1_90_MODBCST TYPE STRING,
L1_90_PMVAST TYPE STRING,
L1_90_PREDBCST TYPE STRING,
L1_90_VBCST TYPE STRING,
L1_90_PICMSST TYPE STRING,
L1_90_VICMSST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J1B_NF_XML_L1_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_J1B_NF_XML_L1_STR-L1_ICMS sy-vline 
WA_J1B_NF_XML_L1_STR-L1_00_ORIG sy-vline 
WA_J1B_NF_XML_L1_STR-L1_00_CST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_00_MODBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_00_VBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_00_PICMS sy-vline 
WA_J1B_NF_XML_L1_STR-L1_00_VICMS sy-vline 
WA_J1B_NF_XML_L1_STR-L1_10_ORIG sy-vline 
WA_J1B_NF_XML_L1_STR-L1_10_CST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_10_MODBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_10_VBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_10_PICMS sy-vline 
WA_J1B_NF_XML_L1_STR-L1_10_VICMS sy-vline 
WA_J1B_NF_XML_L1_STR-L1_10_MODBCST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_10_PMVAST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_10_PREDBCST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_10_VBCST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_10_PICMSST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_10_VICMSST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_20_ORIG sy-vline 
WA_J1B_NF_XML_L1_STR-L1_20_CST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_20_MODBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_20_PREDBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_20_VBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_20_PICMS sy-vline 
WA_J1B_NF_XML_L1_STR-L1_20_VICMS sy-vline 
WA_J1B_NF_XML_L1_STR-L1_30_ORIG sy-vline 
WA_J1B_NF_XML_L1_STR-L1_30_CST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_30_MODBCST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_30_PMVAST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_30_PREDBCST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_30_VBCST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_30_PICMSST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_30_VICMSST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_40_ORIG sy-vline 
WA_J1B_NF_XML_L1_STR-L1_40_CST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_51_ORIG sy-vline 
WA_J1B_NF_XML_L1_STR-L1_51_CST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_51_MODBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_51_PREDBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_51_VBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_51_PICMS sy-vline 
WA_J1B_NF_XML_L1_STR-L1_51_VICMS sy-vline 
WA_J1B_NF_XML_L1_STR-L1_60_ORIG sy-vline 
WA_J1B_NF_XML_L1_STR-L1_60_CST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_60_VBCST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_60_VICMSST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_70_ORIG sy-vline 
WA_J1B_NF_XML_L1_STR-L1_70_CST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_70_MODBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_70_PREDBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_70_VBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_70_PICMS sy-vline 
WA_J1B_NF_XML_L1_STR-L1_70_VICMS sy-vline 
WA_J1B_NF_XML_L1_STR-L1_70_MODBCST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_70_PMVAST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_70_PREDBCST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_70_VBCST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_70_PICMSST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_70_VICMSST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_90_ORIG sy-vline 
WA_J1B_NF_XML_L1_STR-L1_90_CST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_90_MODBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_90_PREDBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_90_VBC sy-vline 
WA_J1B_NF_XML_L1_STR-L1_90_PICMS sy-vline 
WA_J1B_NF_XML_L1_STR-L1_90_VICMS sy-vline 
WA_J1B_NF_XML_L1_STR-L1_90_MODBCST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_90_PMVAST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_90_PREDBCST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_90_VBCST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_90_PICMSST sy-vline 
WA_J1B_NF_XML_L1_STR-L1_90_VICMSST sy-vline      INTO ld_text SEPARATED BY SPACE.

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