ABAP Select data from SAP table NJIT_CALL_CMAT_D into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP NJIT_CALL_CMAT_D 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_CALL_CMAT_D. 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_CALL_CMAT_D 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_CALL_CMAT_D TYPE STANDARD TABLE OF NJIT_CALL_CMAT_D,
      WA_NJIT_CALL_CMAT_D TYPE NJIT_CALL_CMAT_D,
      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_CALL_CMAT_D> TYPE NJIT_CALL_CMAT_D.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM NJIT_CALL_CMAT_D
*  INTO TABLE @DATA(IT_NJIT_CALL_CMAT_D2).
*--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_CALL_CMAT_D INDEX 1 INTO DATA(WA_NJIT_CALL_CMAT_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<NJIT_CALL_CMAT_D>-MANDT = 1.
<NJIT_CALL_CMAT_D>-JITCALLCOMPONENTUUID = 1.
<NJIT_CALL_CMAT_D>-JITHEADERUUID = 1.
<NJIT_CALL_CMAT_D>-JITCALLCOMPGRPUUID = 1.
<NJIT_CALL_CMAT_D>-INTERNALJITCALLNUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_NJIT_CALL_CMAT_D-COMPGRPNUMBER, sy-vline,
  WA_NJIT_CALL_CMAT_D-JITCALLITEMNUMBER, sy-vline,
  WA_NJIT_CALL_CMAT_D-MATERIAL, sy-vline,
  WA_NJIT_CALL_CMAT_D-MATERIALBYCUSTOMER, sy-vline,
  WA_NJIT_CALL_CMAT_D-EXTJITCALLITEMNUMBER, sy-vline,
  WA_NJIT_CALL_CMAT_D-SALESSCHEDULINGAGREEMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_NJIT_CALL_CMAT_D 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_CALL_CMAT_D 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_CALL_CMAT_D INTO WA_NJIT_CALL_CMAT_D.


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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_NJIT_CALL_CMAT_D-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NJIT_CALL_CMAT_D-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_NJIT_CALL_CMAT_D-QUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NJIT_CALL_CMAT_D-QUANTITYUNIT.
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_CALL_CMAT_D_STR, 
MANDT TYPE STRING,
JITCALLCOMPONENTUUID TYPE STRING,
JITHEADERUUID TYPE STRING,
JITCALLCOMPGRPUUID TYPE STRING,
INTERNALJITCALLNUMBER TYPE STRING,
COMPGRPNUMBER TYPE STRING,
JITCALLITEMNUMBER TYPE STRING,
MATERIAL TYPE STRING,
MATERIALBYCUSTOMER TYPE STRING,
EXTJITCALLITEMNUMBER TYPE STRING,
SALESSCHEDULINGAGREEMENT TYPE STRING,
SALESSCHEDULINGAGREEMENTITEM TYPE STRING,
DIVISION TYPE STRING,
REQUESTEDQUANTITY TYPE STRING,
ACTUALDELIVEREDQUANTITY TYPE STRING,
QUANTITYUNIT TYPE STRING,
JITCALLCOMPMATLBACKFLUSHSTATUS TYPE STRING,
JITCALLCOMPMATLBACKFLUSHTYPE TYPE STRING,
JITCALLCOMPBACKFLUSHSTSUPDTDON TYPE STRING,
TRANSMITTEDEXTSTATUSBYMFR TYPE STRING,
UNLOADINGPOINTNAME TYPE STRING,
CUSTASSEMBLYLOC TYPE STRING,
CUSTSUPPLYAREA TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
SHIPPINGPOINT TYPE STRING,
REQUIREMENTDATETIME TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTFIELDCHANGES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_NJIT_CALL_CMAT_D_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_CALL_CMAT_D_STR-MANDT sy-vline 
WA_NJIT_CALL_CMAT_D_STR-JITCALLCOMPONENTUUID sy-vline 
WA_NJIT_CALL_CMAT_D_STR-JITHEADERUUID sy-vline 
WA_NJIT_CALL_CMAT_D_STR-JITCALLCOMPGRPUUID sy-vline 
WA_NJIT_CALL_CMAT_D_STR-INTERNALJITCALLNUMBER sy-vline 
WA_NJIT_CALL_CMAT_D_STR-COMPGRPNUMBER sy-vline 
WA_NJIT_CALL_CMAT_D_STR-JITCALLITEMNUMBER sy-vline 
WA_NJIT_CALL_CMAT_D_STR-MATERIAL sy-vline 
WA_NJIT_CALL_CMAT_D_STR-MATERIALBYCUSTOMER sy-vline 
WA_NJIT_CALL_CMAT_D_STR-EXTJITCALLITEMNUMBER sy-vline 
WA_NJIT_CALL_CMAT_D_STR-SALESSCHEDULINGAGREEMENT sy-vline 
WA_NJIT_CALL_CMAT_D_STR-SALESSCHEDULINGAGREEMENTITEM sy-vline 
WA_NJIT_CALL_CMAT_D_STR-DIVISION sy-vline 
WA_NJIT_CALL_CMAT_D_STR-REQUESTEDQUANTITY sy-vline 
WA_NJIT_CALL_CMAT_D_STR-ACTUALDELIVEREDQUANTITY sy-vline 
WA_NJIT_CALL_CMAT_D_STR-QUANTITYUNIT sy-vline 
WA_NJIT_CALL_CMAT_D_STR-JITCALLCOMPMATLBACKFLUSHSTATUS sy-vline 
WA_NJIT_CALL_CMAT_D_STR-JITCALLCOMPMATLBACKFLUSHTYPE sy-vline 
WA_NJIT_CALL_CMAT_D_STR-JITCALLCOMPBACKFLUSHSTSUPDTDON sy-vline 
WA_NJIT_CALL_CMAT_D_STR-TRANSMITTEDEXTSTATUSBYMFR sy-vline 
WA_NJIT_CALL_CMAT_D_STR-UNLOADINGPOINTNAME sy-vline 
WA_NJIT_CALL_CMAT_D_STR-CUSTASSEMBLYLOC sy-vline 
WA_NJIT_CALL_CMAT_D_STR-CUSTSUPPLYAREA sy-vline 
WA_NJIT_CALL_CMAT_D_STR-PLANT sy-vline 
WA_NJIT_CALL_CMAT_D_STR-STORAGELOCATION sy-vline 
WA_NJIT_CALL_CMAT_D_STR-SHIPPINGPOINT sy-vline 
WA_NJIT_CALL_CMAT_D_STR-REQUIREMENTDATETIME sy-vline 
WA_NJIT_CALL_CMAT_D_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_NJIT_CALL_CMAT_D_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_NJIT_CALL_CMAT_D_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_NJIT_CALL_CMAT_D_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_NJIT_CALL_CMAT_D_STR-HASACTIVEENTITY sy-vline 
WA_NJIT_CALL_CMAT_D_STR-DRAFTFIELDCHANGES sy-vline      INTO ld_text SEPARATED BY SPACE.

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