ABAP Select data from SAP table USMDZ10_S_CHG_DOC_INPUT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP USMDZ10_S_CHG_DOC_INPUT 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 USMDZ10_S_CHG_DOC_INPUT. 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 USMDZ10_S_CHG_DOC_INPUT 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_USMDZ10_S_CHG_DOC_INPUT TYPE STANDARD TABLE OF USMDZ10_S_CHG_DOC_INPUT,
      WA_USMDZ10_S_CHG_DOC_INPUT TYPE USMDZ10_S_CHG_DOC_INPUT,
      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: <USMDZ10_S_CHG_DOC_INPUT> TYPE USMDZ10_S_CHG_DOC_INPUT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_USMDZ10_S_CHG_DOC_INPUT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM USMDZ10_S_CHG_DOC_INPUT
  INTO TABLE IT_USMDZ10_S_CHG_DOC_INPUT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM USMDZ10_S_CHG_DOC_INPUT
*  INTO TABLE @DATA(IT_USMDZ10_S_CHG_DOC_INPUT2).
*--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_USMDZ10_S_CHG_DOC_INPUT INDEX 1 INTO DATA(WA_USMDZ10_S_CHG_DOC_INPUT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_USMDZ10_S_CHG_DOC_INPUT ASSIGNING <USMDZ10_S_CHG_DOC_INPUT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<USMDZ10_S_CHG_DOC_INPUT>-CREQUEST = 1.
<USMDZ10_S_CHG_DOC_INPUT>-CONDENSED = 1.
<USMDZ10_S_CHG_DOC_INPUT>-MODEL = 1.
<USMDZ10_S_CHG_DOC_INPUT>-USMD_OTC = 1.
<USMDZ10_S_CHG_DOC_INPUT>-HIERARCHY_MODE = 1.

ENDLOOP.

LOOP AT IT_USMDZ10_S_CHG_DOC_INPUT INTO WA_USMDZ10_S_CHG_DOC_INPUT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_USMDZ10_S_CHG_DOC_INPUT-ACCCCDET, sy-vline,
  WA_USMDZ10_S_CHG_DOC_INPUT-ACCOUNT, sy-vline,
  WA_USMDZ10_S_CHG_DOC_INPUT-BDC, sy-vline,
  WA_USMDZ10_S_CHG_DOC_INPUT-BDCSET, sy-vline,
  WA_USMDZ10_S_CHG_DOC_INPUT-CCTR, sy-vline,
  WA_USMDZ10_S_CHG_DOC_INPUT-CCTRG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_USMDZ10_S_CHG_DOC_INPUT 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_USMDZ10_S_CHG_DOC_INPUT 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_USMDZ10_S_CHG_DOC_INPUT INTO WA_USMDZ10_S_CHG_DOC_INPUT.


*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 CREQUEST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-CREQUEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-CREQUEST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCCCDET
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-ACCCCDET
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-ACCCCDET.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-ACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-ACCOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BDCSET
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-BDCSET
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-BDCSET.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-CCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-CCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CELEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-CELEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-CELEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COMPANY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-COMPANY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-COMPANY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COMPCODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-COMPCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-COMPCODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONSGRP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-CONSGRP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-CONSGRP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONSGRPH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-CONSGRPH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-CONSGRPH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONSUNIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-CONSUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-CONSUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FSI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-FSI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-FSI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FSIH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-FSIH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-FSIH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FSIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-FSIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-FSIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-PCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-PCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUBMPACK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-SUBMPACK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-SUBMPACK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRANSTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-TRANSTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-TRANSTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field IORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ10_S_CHG_DOC_INPUT-IORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ10_S_CHG_DOC_INPUT-IORDER.
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_USMDZ10_S_CHG_DOC_INPUT_STR, 
CREQUEST TYPE STRING,
CONDENSED TYPE STRING,
MODEL TYPE STRING,
USMD_OTC TYPE STRING,
HIERARCHY_MODE TYPE STRING,
ACCCCDET TYPE STRING,
ACCOUNT TYPE STRING,
BDC TYPE STRING,
BDCSET TYPE STRING,
CCTR TYPE STRING,
CCTRG TYPE STRING,
CCTRH TYPE STRING,
CELEM TYPE STRING,
CELEMG TYPE STRING,
CELEMH TYPE STRING,
COA TYPE STRING,
COAREA TYPE STRING,
COMPANY TYPE STRING,
COMPCODE TYPE STRING,
CONSCHAR TYPE STRING,
CONSGRP TYPE STRING,
CONSGRPH TYPE STRING,
CONSUNIT TYPE STRING,
FRS TYPE STRING,
FRSI TYPE STRING,
FSI TYPE STRING,
FSIH TYPE STRING,
FSIT TYPE STRING,
PCTR TYPE STRING,
PCTRG TYPE STRING,
PCTRH TYPE STRING,
SUBMPACK TYPE STRING,
TRANSTYPE TYPE STRING,
IORDER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_USMDZ10_S_CHG_DOC_INPUT_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_USMDZ10_S_CHG_DOC_INPUT_STR-CREQUEST sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-CONDENSED sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-MODEL sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-USMD_OTC sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-HIERARCHY_MODE sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-ACCCCDET sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-ACCOUNT sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-BDC sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-BDCSET sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-CCTR sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-CCTRG sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-CCTRH sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-CELEM sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-CELEMG sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-CELEMH sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-COA sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-COAREA sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-COMPANY sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-COMPCODE sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-CONSCHAR sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-CONSGRP sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-CONSGRPH sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-CONSUNIT sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-FRS sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-FRSI sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-FSI sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-FSIH sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-FSIT sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-PCTR sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-PCTRG sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-PCTRH sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-SUBMPACK sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-TRANSTYPE sy-vline 
WA_USMDZ10_S_CHG_DOC_INPUT_STR-IORDER sy-vline      INTO ld_text SEPARATED BY SPACE.

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