ABAP Select data from SAP table EUMZABLD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EUMZABLD
*  INTO TABLE @DATA(IT_EUMZABLD2).
*--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_EUMZABLD INDEX 1 INTO DATA(WA_EUMZABLD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EUMZABLD>-MANDT = 1.
<EUMZABLD>-ABLESGR = 1.
<EUMZABLD>-ADAT = 1.
<EUMZABLD>-MORDERCRT = 1.
<EUMZABLD>-DELAYED_SVCABW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EUMZABLD-SMSTARTTIME, sy-vline,
  WA_EUMZABLD-SMSTARTDATE, sy-vline,
  WA_EUMZABLD-ABLESART, sy-vline,
  WA_EUMZABLD-ABLESARTT, sy-vline,
  WA_EUMZABLD-THGDATUM, sy-vline,
  WA_EUMZABLD-ISTABLART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EUMZABLD 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_EUMZABLD 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_EUMZABLD INTO WA_EUMZABLD.


*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_EUMZABLD_STR, 
MANDT TYPE STRING,
ABLESGR TYPE STRING,
ADAT TYPE STRING,
MORDERCRT TYPE STRING,
DELAYED_SVCABW TYPE STRING,
SMSTARTTIME TYPE STRING,
SMSTARTDATE TYPE STRING,
ABLESART TYPE STRING,
ABLESARTT TYPE STRING,
THGDATUM TYPE STRING,
ISTABLART TYPE STRING,
ISTABLARTT TYPE STRING,
ABLESER TYPE STRING,
NAME1 TYPE STRING,
RAHMEN1 TYPE STRING,
RAHMEN2 TYPE STRING,
INFOTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EUMZABLD_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_EUMZABLD_STR-MANDT sy-vline 
WA_EUMZABLD_STR-ABLESGR sy-vline 
WA_EUMZABLD_STR-ADAT sy-vline 
WA_EUMZABLD_STR-MORDERCRT sy-vline 
WA_EUMZABLD_STR-DELAYED_SVCABW sy-vline 
WA_EUMZABLD_STR-SMSTARTTIME sy-vline 
WA_EUMZABLD_STR-SMSTARTDATE sy-vline 
WA_EUMZABLD_STR-ABLESART sy-vline 
WA_EUMZABLD_STR-ABLESARTT sy-vline 
WA_EUMZABLD_STR-THGDATUM sy-vline 
WA_EUMZABLD_STR-ISTABLART sy-vline 
WA_EUMZABLD_STR-ISTABLARTT sy-vline 
WA_EUMZABLD_STR-ABLESER sy-vline 
WA_EUMZABLD_STR-NAME1 sy-vline 
WA_EUMZABLD_STR-RAHMEN1 sy-vline 
WA_EUMZABLD_STR-RAHMEN2 sy-vline 
WA_EUMZABLD_STR-INFOTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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