ABAP Select data from SAP table APIJITCOMPGRP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM APIJITCOMPGRP
*  INTO TABLE @DATA(IT_APIJITCOMPGRP2).
*--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_APIJITCOMPGRP INDEX 1 INTO DATA(WA_APIJITCOMPGRP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<APIJITCOMPGRP>-MANDT = 1.
<APIJITCOMPGRP>-JITCALLNUMBER = 1.
<APIJITCOMPGRP>-JITCONTROLCYCLE = 1.
<APIJITCOMPGRP>-COMPGRPNUMBER = 1.
<APIJITCOMPGRP>-COMPGRPMATL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_APIJITCOMPGRP-JITINTPROCESSINGSTATUS, sy-vline,
  WA_APIJITCOMPGRP-JITDEMANDDATETIME, sy-vline,
  WA_APIJITCOMPGRP-JITSUPPLYDATETIME, sy-vline,
  WA_APIJITCOMPGRP-PLANT, sy-vline,
  WA_APIJITCOMPGRP-PLANTNAME, sy-vline,
  WA_APIJITCOMPGRP-PRODUCTIONSUPPLYAREA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_APIJITCOMPGRP 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_APIJITCOMPGRP 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_APIJITCOMPGRP INTO WA_APIJITCOMPGRP.


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

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

*Conversion exit MATN1, internal->external for field COMPGRPMATL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_APIJITCOMPGRP-COMPGRPMATL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_APIJITCOMPGRP-COMPGRPMATL.
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_APIJITCOMPGRP_STR, 
MANDT TYPE STRING,
JITCALLNUMBER TYPE STRING,
JITCONTROLCYCLE TYPE STRING,
COMPGRPNUMBER TYPE STRING,
COMPGRPMATL TYPE STRING,
JITINTPROCESSINGSTATUS TYPE STRING,
JITDEMANDDATETIME TYPE STRING,
JITSUPPLYDATETIME TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
PRODUCTIONSUPPLYAREA TYPE STRING,
PRODUCTIONSUPPLYAREANAME TYPE STRING,
JITACTIONCTRL TYPE STRING,
RESPONSIBLE TYPE STRING,
JITOUTBSTOCKTRANSFERSTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_APIJITCOMPGRP_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_APIJITCOMPGRP_STR-MANDT sy-vline 
WA_APIJITCOMPGRP_STR-JITCALLNUMBER sy-vline 
WA_APIJITCOMPGRP_STR-JITCONTROLCYCLE sy-vline 
WA_APIJITCOMPGRP_STR-COMPGRPNUMBER sy-vline 
WA_APIJITCOMPGRP_STR-COMPGRPMATL sy-vline 
WA_APIJITCOMPGRP_STR-JITINTPROCESSINGSTATUS sy-vline 
WA_APIJITCOMPGRP_STR-JITDEMANDDATETIME sy-vline 
WA_APIJITCOMPGRP_STR-JITSUPPLYDATETIME sy-vline 
WA_APIJITCOMPGRP_STR-PLANT sy-vline 
WA_APIJITCOMPGRP_STR-PLANTNAME sy-vline 
WA_APIJITCOMPGRP_STR-PRODUCTIONSUPPLYAREA sy-vline 
WA_APIJITCOMPGRP_STR-PRODUCTIONSUPPLYAREANAME sy-vline 
WA_APIJITCOMPGRP_STR-JITACTIONCTRL sy-vline 
WA_APIJITCOMPGRP_STR-RESPONSIBLE sy-vline 
WA_APIJITCOMPGRP_STR-JITOUTBSTOCKTRANSFERSTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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