ABAP Select data from SAP table NJIT_S2P_S_API_COMP_GROUP into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP NJIT_S2P_S_API_COMP_GROUP 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 NJIT_S2P_S_API_COMP_GROUP. 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 NJIT_S2P_S_API_COMP_GROUP 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_NJIT_S2P_S_API_COMP_GROUP TYPE STANDARD TABLE OF NJIT_S2P_S_API_COMP_GROUP,
      WA_NJIT_S2P_S_API_COMP_GROUP TYPE NJIT_S2P_S_API_COMP_GROUP,
      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: <NJIT_S2P_S_API_COMP_GROUP> TYPE NJIT_S2P_S_API_COMP_GROUP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_NJIT_S2P_S_API_COMP_GROUP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM NJIT_S2P_S_API_COMP_GROUP
  INTO TABLE IT_NJIT_S2P_S_API_COMP_GROUP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM NJIT_S2P_S_API_COMP_GROUP
*  INTO TABLE @DATA(IT_NJIT_S2P_S_API_COMP_GROUP2).
*--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_NJIT_S2P_S_API_COMP_GROUP INDEX 1 INTO DATA(WA_NJIT_S2P_S_API_COMP_GROUP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_NJIT_S2P_S_API_COMP_GROUP ASSIGNING <NJIT_S2P_S_API_COMP_GROUP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<NJIT_S2P_S_API_COMP_GROUP>-JITCALLNUMBER = 1.
<NJIT_S2P_S_API_COMP_GROUP>-JITCONTROLCYCLE = 1.
<NJIT_S2P_S_API_COMP_GROUP>-COMPGRPNUMBER = 1.
<NJIT_S2P_S_API_COMP_GROUP>-COMPGRPMATL = 1.
<NJIT_S2P_S_API_COMP_GROUP>-JITINTPROCESSINGSTATUS = 1.

ENDLOOP.

LOOP AT IT_NJIT_S2P_S_API_COMP_GROUP INTO WA_NJIT_S2P_S_API_COMP_GROUP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_NJIT_S2P_S_API_COMP_GROUP-JITDEMANDDATETIME, sy-vline,
  WA_NJIT_S2P_S_API_COMP_GROUP-JITSUPPLYDATETIME, sy-vline,
  WA_NJIT_S2P_S_API_COMP_GROUP-PLANT, sy-vline,
  WA_NJIT_S2P_S_API_COMP_GROUP-PLANTNAME, sy-vline,
  WA_NJIT_S2P_S_API_COMP_GROUP-PRODUCTIONSUPPLYAREA, sy-vline,
  WA_NJIT_S2P_S_API_COMP_GROUP-PRODUCTIONSUPPLYAREANAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_NJIT_S2P_S_API_COMP_GROUP 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_NJIT_S2P_S_API_COMP_GROUP 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_NJIT_S2P_S_API_COMP_GROUP INTO WA_NJIT_S2P_S_API_COMP_GROUP.


*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_NJIT_S2P_S_API_COMP_GROUP-JITCALLNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NJIT_S2P_S_API_COMP_GROUP-JITCALLNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field JITCONTROLCYCLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_NJIT_S2P_S_API_COMP_GROUP-JITCONTROLCYCLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NJIT_S2P_S_API_COMP_GROUP-JITCONTROLCYCLE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field COMPGRPMATL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_NJIT_S2P_S_API_COMP_GROUP-COMPGRPMATL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NJIT_S2P_S_API_COMP_GROUP-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_NJIT_S2P_S_API_COMP_GROUP_STR, 
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,
DESTINATIONSTORAGELOCATION TYPE STRING,
JITACTIONCTRL TYPE STRING,
RESPONSIBLE TYPE STRING,
JITOUTBSTOCKTRANSFERSTS TYPE STRING,
DUMMY_S2P_CGRP_INCL_EEW_PS TYPE STRING,
TO_JITOUTBCALLREFTEXTCOMPGRP TYPE STRING,
TO_JITOUTBCALLCOMPMATL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_NJIT_S2P_S_API_COMP_GROUP_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_NJIT_S2P_S_API_COMP_GROUP_STR-JITCALLNUMBER sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-JITCONTROLCYCLE sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-COMPGRPNUMBER sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-COMPGRPMATL sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-JITINTPROCESSINGSTATUS sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-JITDEMANDDATETIME sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-JITSUPPLYDATETIME sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-PLANT sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-PLANTNAME sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-PRODUCTIONSUPPLYAREA sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-PRODUCTIONSUPPLYAREANAME sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-DESTINATIONSTORAGELOCATION sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-JITACTIONCTRL sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-RESPONSIBLE sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-JITOUTBSTOCKTRANSFERSTS sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-DUMMY_S2P_CGRP_INCL_EEW_PS sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-TO_JITOUTBCALLREFTEXTCOMPGRP sy-vline 
WA_NJIT_S2P_S_API_COMP_GROUP_STR-TO_JITOUTBCALLCOMPMATL sy-vline      INTO ld_text SEPARATED BY SPACE.

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