ABAP Select data from SAP table EIDESWTMSGTMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EIDESWTMSGTMP
*  INTO TABLE @DATA(IT_EIDESWTMSGTMP2).
*--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_EIDESWTMSGTMP INDEX 1 INTO DATA(WA_EIDESWTMSGTMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EIDESWTMSGTMP>-MANDT = 1.
<EIDESWTMSGTMP>-MSGDATANUM = 1.
<EIDESWTMSGTMP>-MSGDATE = 1.
<EIDESWTMSGTMP>-MSGTIME = 1.
<EIDESWTMSGTMP>-CATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EIDESWTMSGTMP-DEXTASKID, sy-vline,
  WA_EIDESWTMSGTMP-DIRECTION, sy-vline,
  WA_EIDESWTMSGTMP-COMPARTNER, sy-vline,
  WA_EIDESWTMSGTMP-IDREFNR, sy-vline,
  WA_EIDESWTMSGTMP-METERNR, sy-vline,
  WA_EIDESWTMSGTMP-NAME_L, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EIDESWTMSGTMP 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_EIDESWTMSGTMP 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_EIDESWTMSGTMP INTO WA_EIDESWTMSGTMP.


*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_EIDESWTMSGTMP_STR, 
MANDT TYPE STRING,
MSGDATANUM TYPE STRING,
MSGDATE TYPE STRING,
MSGTIME TYPE STRING,
CATEGORY TYPE STRING,
DEXTASKID TYPE STRING,
DIRECTION TYPE STRING,
COMPARTNER TYPE STRING,
IDREFNR TYPE STRING,
METERNR TYPE STRING,
NAME_L TYPE STRING,
NAME_F TYPE STRING,
STREET TYPE STRING,
HOUSENR TYPE STRING,
HOUSENREXT TYPE STRING,
POSTCODE TYPE STRING,
CITY TYPE STRING,
TRANSREASON TYPE STRING,
SETTLRESP TYPE STRING,
METMETHOD TYPE STRING,
PROFILE TYPE STRING,
PROGYEARCONS TYPE STRING,
MAXDEMAND TYPE STRING,
MSGSTATUS TYPE STRING,
PROCSTATUS TYPE STRING,
PROCSTATUSTIMEST TYPE STRING,
EXT_UI TYPE STRING,
STREET_BU TYPE STRING,
HOUSENR_BU TYPE STRING,
HOUSENREXT_BU TYPE STRING,
POSTCODE_BU TYPE STRING,
CITY_BU TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
BEGRU TYPE STRING,
LOEVM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EIDESWTMSGTMP_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_EIDESWTMSGTMP_STR-MANDT sy-vline 
WA_EIDESWTMSGTMP_STR-MSGDATANUM sy-vline 
WA_EIDESWTMSGTMP_STR-MSGDATE sy-vline 
WA_EIDESWTMSGTMP_STR-MSGTIME sy-vline 
WA_EIDESWTMSGTMP_STR-CATEGORY sy-vline 
WA_EIDESWTMSGTMP_STR-DEXTASKID sy-vline 
WA_EIDESWTMSGTMP_STR-DIRECTION sy-vline 
WA_EIDESWTMSGTMP_STR-COMPARTNER sy-vline 
WA_EIDESWTMSGTMP_STR-IDREFNR sy-vline 
WA_EIDESWTMSGTMP_STR-METERNR sy-vline 
WA_EIDESWTMSGTMP_STR-NAME_L sy-vline 
WA_EIDESWTMSGTMP_STR-NAME_F sy-vline 
WA_EIDESWTMSGTMP_STR-STREET sy-vline 
WA_EIDESWTMSGTMP_STR-HOUSENR sy-vline 
WA_EIDESWTMSGTMP_STR-HOUSENREXT sy-vline 
WA_EIDESWTMSGTMP_STR-POSTCODE sy-vline 
WA_EIDESWTMSGTMP_STR-CITY sy-vline 
WA_EIDESWTMSGTMP_STR-TRANSREASON sy-vline 
WA_EIDESWTMSGTMP_STR-SETTLRESP sy-vline 
WA_EIDESWTMSGTMP_STR-METMETHOD sy-vline 
WA_EIDESWTMSGTMP_STR-PROFILE sy-vline 
WA_EIDESWTMSGTMP_STR-PROGYEARCONS sy-vline 
WA_EIDESWTMSGTMP_STR-MAXDEMAND sy-vline 
WA_EIDESWTMSGTMP_STR-MSGSTATUS sy-vline 
WA_EIDESWTMSGTMP_STR-PROCSTATUS sy-vline 
WA_EIDESWTMSGTMP_STR-PROCSTATUSTIMEST sy-vline 
WA_EIDESWTMSGTMP_STR-EXT_UI sy-vline 
WA_EIDESWTMSGTMP_STR-STREET_BU sy-vline 
WA_EIDESWTMSGTMP_STR-HOUSENR_BU sy-vline 
WA_EIDESWTMSGTMP_STR-HOUSENREXT_BU sy-vline 
WA_EIDESWTMSGTMP_STR-POSTCODE_BU sy-vline 
WA_EIDESWTMSGTMP_STR-CITY_BU sy-vline 
WA_EIDESWTMSGTMP_STR-ERDAT sy-vline 
WA_EIDESWTMSGTMP_STR-ERNAM sy-vline 
WA_EIDESWTMSGTMP_STR-AEDAT sy-vline 
WA_EIDESWTMSGTMP_STR-AENAM sy-vline 
WA_EIDESWTMSGTMP_STR-BEGRU sy-vline 
WA_EIDESWTMSGTMP_STR-LOEVM sy-vline      INTO ld_text SEPARATED BY SPACE.

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