ABAP Select data from SAP table EDESKIFDOCUMENTTRANSINSTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EDESKIFDOCUMENTTRANSINSTS
*  INTO TABLE @DATA(IT_EDESKIFDOCUMENTTRANSINSTS2).
*--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_EDESKIFDOCUMENTTRANSINSTS INDEX 1 INTO DATA(WA_EDESKIFDOCUMENTTRANSINSTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EDESKIFDOCUMENTTRANSINSTS>-ID = 1.
<EDESKIFDOCUMENTTRANSINSTS>-PARENTID = 1.
<EDESKIFDOCUMENTTRANSINSTS>-TYPE = 1.
<EDESKIFDOCUMENTTRANSINSTS>-NUMBER = 1.
<EDESKIFDOCUMENTTRANSINSTS>-VERSION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EDESKIFDOCUMENTTRANSINSTS-PART, sy-vline,
  WA_EDESKIFDOCUMENTTRANSINSTS-NODIR, sy-vline,
  WA_EDESKIFDOCUMENTTRANSINSTS-CADMODIFIED, sy-vline,
  WA_EDESKIFDOCUMENTTRANSINSTS-CADDATE, sy-vline,
  WA_EDESKIFDOCUMENTTRANSINSTS-PATH, sy-vline,
  WA_EDESKIFDOCUMENTTRANSINSTS-FILENAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EDESKIFDOCUMENTTRANSINSTS 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_EDESKIFDOCUMENTTRANSINSTS 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_EDESKIFDOCUMENTTRANSINSTS INTO WA_EDESKIFDOCUMENTTRANSINSTS.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_EDESKIFDOCUMENTTRANSINSTS_STR, 
ID TYPE STRING,
PARENTID TYPE STRING,
TYPE TYPE STRING,
NUMBER TYPE STRING,
VERSION TYPE STRING,
PART TYPE STRING,
NODIR TYPE STRING,
CADMODIFIED TYPE STRING,
CADDATE TYPE STRING,
PATH TYPE STRING,
FILENAME TYPE STRING,
OBJECTTYPE TYPE STRING,
QUANTITY TYPE STRING,
INTBOMID TYPE STRING,
CADPATH TYPE STRING,
HEADERID TYPE STRING,
CUOBJECTID TYPE STRING,
TECHS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EDESKIFDOCUMENTTRANSINSTS_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_EDESKIFDOCUMENTTRANSINSTS_STR-ID sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-PARENTID sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-TYPE sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-NUMBER sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-VERSION sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-PART sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-NODIR sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-CADMODIFIED sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-CADDATE sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-PATH sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-FILENAME sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-OBJECTTYPE sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-QUANTITY sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-INTBOMID sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-CADPATH sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-HEADERID sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-CUOBJECTID sy-vline 
WA_EDESKIFDOCUMENTTRANSINSTS_STR-TECHS sy-vline      INTO ld_text SEPARATED BY SPACE.

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