ABAP Select data from SAP table EAMS_S_UI_ORDNTF_CHANGE_DOCS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EAMS_S_UI_ORDNTF_CHANGE_DOCS
*  INTO TABLE @DATA(IT_EAMS_S_UI_ORDNTF_CHANGE_DOCS2).
*--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_EAMS_S_UI_ORDNTF_CHANGE_DOCS INDEX 1 INTO DATA(WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EAMS_S_UI_ORDNTF_CHANGE_DOCS>-OBJECTID = 1.
<EAMS_S_UI_ORDNTF_CHANGE_DOCS>-CHANGENR = 1.
<EAMS_S_UI_ORDNTF_CHANGE_DOCS>-USERNAME = 1.
<EAMS_S_UI_ORDNTF_CHANGE_DOCS>-UDATE = 1.
<EAMS_S_UI_ORDNTF_CHANGE_DOCS>-UTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS-TCODE, sy-vline,
  WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS-TABNAME, sy-vline,
  WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS-TABKEY, sy-vline,
  WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS-KEYLEN, sy-vline,
  WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS-CHNGIND, sy-vline,
  WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS-FNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS 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_EAMS_S_UI_ORDNTF_CHANGE_DOCS 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_EAMS_S_UI_ORDNTF_CHANGE_DOCS INTO WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS.


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

*Conversion exit ISOLA, internal->external for field SPRACHE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS-SPRACHE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS-SPRACHE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRM, internal->external for field CREATED_ON_TSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTRM_OUTPUT'
  EXPORTING
    input =                      WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS-CREATED_ON_TSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS-CREATED_ON_TSTMP.
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_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR, 
OBJECTID TYPE STRING,
CHANGENR TYPE STRING,
USERNAME TYPE STRING,
UDATE TYPE STRING,
UTIME TYPE STRING,
TCODE TYPE STRING,
TABNAME TYPE STRING,
TABKEY TYPE STRING,
KEYLEN TYPE STRING,
CHNGIND TYPE STRING,
FNAME TYPE STRING,
FTEXT TYPE STRING,
TEXTART TYPE STRING,
SPRACHE TYPE STRING,
TEXT_CASE TYPE STRING,
OUTLEN TYPE STRING,
F_OLD TYPE STRING,
F_NEW TYPE STRING,
KEYGUID TYPE STRING,
TABKEY254 TYPE STRING,
EXT_KEYLEN TYPE STRING,
KEYGUID_STR TYPE STRING,
VERSION TYPE STRING,
FULLNAME TYPE STRING,
CHANGETYPE TYPE STRING,
CREATED_ON_TSTMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_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_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-OBJECTID sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-CHANGENR sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-USERNAME sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-UDATE sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-UTIME sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-TCODE sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-TABNAME sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-TABKEY sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-KEYLEN sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-CHNGIND sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-FNAME sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-FTEXT sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-TEXTART sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-SPRACHE sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-TEXT_CASE sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-OUTLEN sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-F_OLD sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-F_NEW sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-KEYGUID sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-TABKEY254 sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-EXT_KEYLEN sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-KEYGUID_STR sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-VERSION sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-FULLNAME sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-CHANGETYPE sy-vline 
WA_EAMS_S_UI_ORDNTF_CHANGE_DOCS_STR-CREATED_ON_TSTMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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