ABAP Select data from SAP table J_1AINFMBW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1AINFMBW 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_1AINFMBW. 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_1AINFMBW 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_1AINFMBW TYPE STANDARD TABLE OF J_1AINFMBW,
      WA_J_1AINFMBW TYPE J_1AINFMBW,
      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_1AINFMBW> TYPE J_1AINFMBW.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1AINFMBW.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1AINFMBW
  INTO TABLE IT_J_1AINFMBW.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1AINFMBW
*  INTO TABLE @DATA(IT_J_1AINFMBW2).
*--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_1AINFMBW INDEX 1 INTO DATA(WA_J_1AINFMBW2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1AINFMBW ASSIGNING <J_1AINFMBW>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1AINFMBW>-MANDT = 1.
<J_1AINFMBW>-MATNR = 1.
<J_1AINFMBW>-BWKEY = 1.
<J_1AINFMBW>-BWTAR = 1.
<J_1AINFMBW>-J_1AMINFCL = 1.

ENDLOOP.

LOOP AT IT_J_1AINFMBW INTO WA_J_1AINFMBW.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1AINFMBW-J_1AMPMETH, sy-vline,
  WA_J_1AINFMBW-J_1AINDXP, sy-vline,
  WA_J_1AINFMBW-J_1ATBEDEP, sy-vline,
  WA_J_1AINFMBW-J_1APRTOL, sy-vline,
  WA_J_1AINFMBW-J_1ARPLCPC, sy-vline,
  WA_J_1AINFMBW-J_1ACURRC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1AINFMBW 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_1AINFMBW 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_1AINFMBW INTO WA_J_1AINFMBW.


*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_1AINFMBW-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1AINFMBW-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field J_1ARPLCPT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_1AINFMBW-J_1ARPLCPT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1AINFMBW-J_1ARPLCPT.
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_1AINFMBW_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
BWKEY TYPE STRING,
BWTAR TYPE STRING,
J_1AMINFCL TYPE STRING,
J_1AMPMETH TYPE STRING,
J_1AINDXP TYPE STRING,
J_1ATBEDEP TYPE STRING,
J_1APRTOL TYPE STRING,
J_1ARPLCPC TYPE STRING,
J_1ACURRC TYPE STRING,
J_1AREVDTC TYPE STRING,
J_1APRODTC TYPE STRING,
J_1APROVXC TYPE STRING,
J_1APRODXC TYPE STRING,
J_1AMPMANC TYPE STRING,
J_1ARPLCPP TYPE STRING,
J_1ACURRP TYPE STRING,
J_1AREVDTP TYPE STRING,
J_1APRODTP TYPE STRING,
J_1APROVXP TYPE STRING,
J_1APRODXP TYPE STRING,
J_1AMPMANP TYPE STRING,
J_1AMPPU TYPE STRING,
J_1AREVPFD TYPE STRING,
J_1AREVPFE TYPE STRING,
J_1AREVPFF TYPE STRING,
J_1ARPLCPT TYPE STRING,
J_1ALREDTP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1AINFMBW_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_1AINFMBW_STR-MANDT sy-vline 
WA_J_1AINFMBW_STR-MATNR sy-vline 
WA_J_1AINFMBW_STR-BWKEY sy-vline 
WA_J_1AINFMBW_STR-BWTAR sy-vline 
WA_J_1AINFMBW_STR-J_1AMINFCL sy-vline 
WA_J_1AINFMBW_STR-J_1AMPMETH sy-vline 
WA_J_1AINFMBW_STR-J_1AINDXP sy-vline 
WA_J_1AINFMBW_STR-J_1ATBEDEP sy-vline 
WA_J_1AINFMBW_STR-J_1APRTOL sy-vline 
WA_J_1AINFMBW_STR-J_1ARPLCPC sy-vline 
WA_J_1AINFMBW_STR-J_1ACURRC sy-vline 
WA_J_1AINFMBW_STR-J_1AREVDTC sy-vline 
WA_J_1AINFMBW_STR-J_1APRODTC sy-vline 
WA_J_1AINFMBW_STR-J_1APROVXC sy-vline 
WA_J_1AINFMBW_STR-J_1APRODXC sy-vline 
WA_J_1AINFMBW_STR-J_1AMPMANC sy-vline 
WA_J_1AINFMBW_STR-J_1ARPLCPP sy-vline 
WA_J_1AINFMBW_STR-J_1ACURRP sy-vline 
WA_J_1AINFMBW_STR-J_1AREVDTP sy-vline 
WA_J_1AINFMBW_STR-J_1APRODTP sy-vline 
WA_J_1AINFMBW_STR-J_1APROVXP sy-vline 
WA_J_1AINFMBW_STR-J_1APRODXP sy-vline 
WA_J_1AINFMBW_STR-J_1AMPMANP sy-vline 
WA_J_1AINFMBW_STR-J_1AMPPU sy-vline 
WA_J_1AINFMBW_STR-J_1AREVPFD sy-vline 
WA_J_1AINFMBW_STR-J_1AREVPFE sy-vline 
WA_J_1AINFMBW_STR-J_1AREVPFF sy-vline 
WA_J_1AINFMBW_STR-J_1ARPLCPT sy-vline 
WA_J_1AINFMBW_STR-J_1ALREDTP sy-vline      INTO ld_text SEPARATED BY SPACE.

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