ABAP Select data from SAP table USMDZ_S_ACCCCDET_ATTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM USMDZ_S_ACCCCDET_ATTR
*  INTO TABLE @DATA(IT_USMDZ_S_ACCCCDET_ATTR2).
*--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_USMDZ_S_ACCCCDET_ATTR INDEX 1 INTO DATA(WA_USMDZ_S_ACCCCDET_ATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<USMDZ_S_ACCCCDET_ATTR>-ACCOUNT = 1.
<USMDZ_S_ACCCCDET_ATTR>-COA = 1.
<USMDZ_S_ACCCCDET_ATTR>-COMPCODE = 1.
<USMDZ_S_ACCCCDET_ATTR>-DATETO = 1.
<USMDZ_S_ACCCCDET_ATTR>-DATEFROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_USMDZ_S_ACCCCDET_ATTR-USMD_EDITION, sy-vline,
  WA_USMDZ_S_ACCCCDET_ATTR-USMD_RELEASED_AT, sy-vline,
  WA_USMDZ_S_ACCCCDET_ATTR-ACCAUTHGP, sy-vline,
  WA_USMDZ_S_ACCCCDET_ATTR-ACCAUTPOS, sy-vline,
  WA_USMDZ_S_ACCCCDET_ATTR-ACCBALLC, sy-vline,
  WA_USMDZ_S_ACCCCDET_ATTR-ACCCASHFL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_USMDZ_S_ACCCCDET_ATTR 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_USMDZ_S_ACCCCDET_ATTR 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_USMDZ_S_ACCCCDET_ATTR INTO WA_USMDZ_S_ACCCCDET_ATTR.


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

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

*Conversion exit ALPHA, internal->external for field ACCALTACC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_USMDZ_S_ACCCCDET_ATTR-ACCALTACC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USMDZ_S_ACCCCDET_ATTR-ACCALTACC.
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_USMDZ_S_ACCCCDET_ATTR_STR, 
ACCOUNT TYPE STRING,
COA TYPE STRING,
COMPCODE TYPE STRING,
DATETO TYPE STRING,
DATEFROM TYPE STRING,
USMD_EDITION TYPE STRING,
USMD_RELEASED_AT TYPE STRING,
ACCAUTHGP TYPE STRING,
ACCAUTPOS TYPE STRING,
ACCBALLC TYPE STRING,
ACCCASHFL TYPE STRING,
ACCCBLPOS TYPE STRING,
ACCCDEL TYPE STRING,
ACCCICFRE TYPE STRING,
ACCCTCOPT TYPE STRING,
ACCCURR TYPE STRING,
ACCLIDISP TYPE STRING,
ACCOPNITM TYPE STRING,
ACCRECIND TYPE STRING,
ACCVALGRP TYPE STRING,
ACCALTACC TYPE STRING,
EXCHRACCC TYPE STRING,
FICOAACCC TYPE STRING,
FSTGACCC TYPE STRING,
FSTVACCC TYPE STRING,
ICALCACCC TYPE STRING,
PLGRPACCC TYPE STRING,
PLLEVACCC TYPE STRING,
TAXCTACCC TYPE STRING,
VALAACCC TYPE STRING,
ACCEXCHRD TYPE STRING,
ACCFSTGRP TYPE STRING,
ACCICFREQ TYPE STRING,
ACCICIND TYPE STRING,
ACCPLLEV TYPE STRING,
ACCTAXCAT TYPE STRING,
ACCTXCOPT TYPE STRING,
CURRACC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_USMDZ_S_ACCCCDET_ATTR_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_USMDZ_S_ACCCCDET_ATTR_STR-ACCOUNT sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-COA sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-COMPCODE sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-DATETO sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-DATEFROM sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-USMD_EDITION sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-USMD_RELEASED_AT sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCAUTHGP sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCAUTPOS sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCBALLC sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCCASHFL sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCCBLPOS sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCCDEL sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCCICFRE sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCCTCOPT sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCCURR sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCLIDISP sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCOPNITM sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCRECIND sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCVALGRP sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCALTACC sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-EXCHRACCC sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-FICOAACCC sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-FSTGACCC sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-FSTVACCC sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ICALCACCC sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-PLGRPACCC sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-PLLEVACCC sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-TAXCTACCC sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-VALAACCC sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCEXCHRD sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCFSTGRP sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCICFREQ sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCICIND sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCPLLEV sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCTAXCAT sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-ACCTXCOPT sy-vline 
WA_USMDZ_S_ACCCCDET_ATTR_STR-CURRACC sy-vline      INTO ld_text SEPARATED BY SPACE.

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