ABAP Select data from SAP table J_1IRAINCND_ST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1IRAINCND_ST 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_1IRAINCND_ST. 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_1IRAINCND_ST 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_1IRAINCND_ST TYPE STANDARD TABLE OF J_1IRAINCND_ST,
      WA_J_1IRAINCND_ST TYPE J_1IRAINCND_ST,
      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_1IRAINCND_ST> TYPE J_1IRAINCND_ST.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1IRAINCND_ST.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1IRAINCND_ST
  INTO TABLE IT_J_1IRAINCND_ST.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1IRAINCND_ST
*  INTO TABLE @DATA(IT_J_1IRAINCND_ST2).
*--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_1IRAINCND_ST INDEX 1 INTO DATA(WA_J_1IRAINCND_ST2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1IRAINCND_ST ASSIGNING <J_1IRAINCND_ST>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1IRAINCND_ST>-MANDT = 1.
<J_1IRAINCND_ST>-AINNO = 1.
<J_1IRAINCND_ST>-AINYR = 1.
<J_1IRAINCND_ST>-AINIT = 1.
<J_1IRAINCND_ST>-KSCHL = 1.

ENDLOOP.

LOOP AT IT_J_1IRAINCND_ST INTO WA_J_1IRAINCND_ST.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1IRAINCND_ST-KBETR, sy-vline,
  WA_J_1IRAINCND_ST-KWERT, sy-vline,
  WA_J_1IRAINCND_ST-WAERS, sy-vline,
  WA_J_1IRAINCND_ST-CONID, sy-vline,
  WA_J_1IRAINCND_ST-VTEXT, sy-vline,
  WA_J_1IRAINCND_ST-KPEIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1IRAINCND_ST 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_1IRAINCND_ST 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_1IRAINCND_ST INTO WA_J_1IRAINCND_ST.


*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 AINNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1IRAINCND_ST-AINNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1IRAINCND_ST-AINNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field AINYR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_1IRAINCND_ST-AINYR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1IRAINCND_ST-AINYR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KVMEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_1IRAINCND_ST-KVMEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1IRAINCND_ST-KVMEI.
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_1IRAINCND_ST_STR, 
MANDT TYPE STRING,
AINNO TYPE STRING,
AINYR TYPE STRING,
AINIT TYPE STRING,
KSCHL TYPE STRING,
KBETR TYPE STRING,
KWERT TYPE STRING,
WAERS TYPE STRING,
CONID TYPE STRING,
VTEXT TYPE STRING,
KPEIN TYPE STRING,
KVMEI TYPE STRING,
STUNR TYPE STRING,
CINFO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1IRAINCND_ST_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_1IRAINCND_ST_STR-MANDT sy-vline 
WA_J_1IRAINCND_ST_STR-AINNO sy-vline 
WA_J_1IRAINCND_ST_STR-AINYR sy-vline 
WA_J_1IRAINCND_ST_STR-AINIT sy-vline 
WA_J_1IRAINCND_ST_STR-KSCHL sy-vline 
WA_J_1IRAINCND_ST_STR-KBETR sy-vline 
WA_J_1IRAINCND_ST_STR-KWERT sy-vline 
WA_J_1IRAINCND_ST_STR-WAERS sy-vline 
WA_J_1IRAINCND_ST_STR-CONID sy-vline 
WA_J_1IRAINCND_ST_STR-VTEXT sy-vline 
WA_J_1IRAINCND_ST_STR-KPEIN sy-vline 
WA_J_1IRAINCND_ST_STR-KVMEI sy-vline 
WA_J_1IRAINCND_ST_STR-STUNR sy-vline 
WA_J_1IRAINCND_ST_STR-CINFO sy-vline      INTO ld_text SEPARATED BY SPACE.

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