ABAP Select data from SAP table E102MDS_EI_VMD_CENTRAL_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E102MDS_EI_VMD_CENTRAL_DATA 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 E102MDS_EI_VMD_CENTRAL_DATA. 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 E102MDS_EI_VMD_CENTRAL_DATA 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_E102MDS_EI_VMD_CENTRAL_DATA TYPE STANDARD TABLE OF E102MDS_EI_VMD_CENTRAL_DATA,
      WA_E102MDS_EI_VMD_CENTRAL_DATA TYPE E102MDS_EI_VMD_CENTRAL_DATA,
      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: <E102MDS_EI_VMD_CENTRAL_DATA> TYPE E102MDS_EI_VMD_CENTRAL_DATA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E102MDS_EI_VMD_CENTRAL_DATA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E102MDS_EI_VMD_CENTRAL_DATA
  INTO TABLE IT_E102MDS_EI_VMD_CENTRAL_DATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E102MDS_EI_VMD_CENTRAL_DATA
*  INTO TABLE @DATA(IT_E102MDS_EI_VMD_CENTRAL_DATA2).
*--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_E102MDS_EI_VMD_CENTRAL_DATA INDEX 1 INTO DATA(WA_E102MDS_EI_VMD_CENTRAL_DATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E102MDS_EI_VMD_CENTRAL_DATA ASSIGNING <E102MDS_EI_VMD_CENTRAL_DATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E102MDS_EI_VMD_CENTRAL_DATA>-APPL_SNAME = 1.
<E102MDS_EI_VMD_CENTRAL_DATA>-BAHNS = 1.
<E102MDS_EI_VMD_CENTRAL_DATA>-BBBNR = 1.
<E102MDS_EI_VMD_CENTRAL_DATA>-BBSNR = 1.
<E102MDS_EI_VMD_CENTRAL_DATA>-BEGRU = 1.

ENDLOOP.

LOOP AT IT_E102MDS_EI_VMD_CENTRAL_DATA INTO WA_E102MDS_EI_VMD_CENTRAL_DATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E102MDS_EI_VMD_CENTRAL_DATA-BRSCH, sy-vline,
  WA_E102MDS_EI_VMD_CENTRAL_DATA-BUBKZ, sy-vline,
  WA_E102MDS_EI_VMD_CENTRAL_DATA-DTAMS, sy-vline,
  WA_E102MDS_EI_VMD_CENTRAL_DATA-DTAWS, sy-vline,
  WA_E102MDS_EI_VMD_CENTRAL_DATA-ESRNR, sy-vline,
  WA_E102MDS_EI_VMD_CENTRAL_DATA-KONZS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E102MDS_EI_VMD_CENTRAL_DATA 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_E102MDS_EI_VMD_CENTRAL_DATA 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_E102MDS_EI_VMD_CENTRAL_DATA INTO WA_E102MDS_EI_VMD_CENTRAL_DATA.


*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_E102MDS_EI_VMD_CENTRAL_DATA_STR, 
APPL_SNAME TYPE STRING,
BAHNS TYPE STRING,
BBBNR TYPE STRING,
BBSNR TYPE STRING,
BEGRU TYPE STRING,
BRSCH TYPE STRING,
BUBKZ TYPE STRING,
DTAMS TYPE STRING,
DTAWS TYPE STRING,
ESRNR TYPE STRING,
KONZS TYPE STRING,
KTOKK TYPE STRING,
KUNNR TYPE STRING,
LNRZA TYPE STRING,
LOEVM TYPE STRING,
SPERR TYPE STRING,
SPERM TYPE STRING,
STCD1 TYPE STRING,
STCD2 TYPE STRING,
STKZA TYPE STRING,
STKZU TYPE STRING,
XZEMP TYPE STRING,
VBUND TYPE STRING,
FISKN TYPE STRING,
STCEG TYPE STRING,
STKZN TYPE STRING,
SPERQ TYPE STRING,
ADRNR TYPE STRING,
GBORT TYPE STRING,
GBDAT TYPE STRING,
SEXKZ TYPE STRING,
KRAUS TYPE STRING,
REVDB TYPE STRING,
QSSYS TYPE STRING,
KTOCK TYPE STRING,
WERKS TYPE STRING,
LTSNA TYPE STRING,
WERKR TYPE STRING,
PLKAL TYPE STRING,
SCACD TYPE STRING,
SFRGR TYPE STRING,
DLGRP TYPE STRING,
FITYP TYPE STRING,
STCDT TYPE STRING,
REGSS TYPE STRING,
ACTSS TYPE STRING,
STCD3 TYPE STRING,
STCD4 TYPE STRING,
IPISP TYPE STRING,
TAXBS TYPE STRING,
PROFS TYPE STRING,
STGDL TYPE STRING,
EMNFR TYPE STRING,
NODEL TYPE STRING,
J_1KFREPRE TYPE STRING,
J_1KFTBUS TYPE STRING,
J_1KFTIND TYPE STRING,
QSSYSDAT TYPE STRING,
PODKZB TYPE STRING,
FISKU TYPE STRING,
STENR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E102MDS_EI_VMD_CENTRAL_DATA_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_E102MDS_EI_VMD_CENTRAL_DATA_STR-APPL_SNAME sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-BAHNS sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-BBBNR sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-BBSNR sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-BEGRU sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-BRSCH sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-BUBKZ sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-DTAMS sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-DTAWS sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-ESRNR sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-KONZS sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-KTOKK sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-KUNNR sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-LNRZA sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-LOEVM sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-SPERR sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-SPERM sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-STCD1 sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-STCD2 sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-STKZA sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-STKZU sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-XZEMP sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-VBUND sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-FISKN sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-STCEG sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-STKZN sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-SPERQ sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-ADRNR sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-GBORT sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-GBDAT sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-SEXKZ sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-KRAUS sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-REVDB sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-QSSYS sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-KTOCK sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-WERKS sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-LTSNA sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-WERKR sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-PLKAL sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-SCACD sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-SFRGR sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-DLGRP sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-FITYP sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-STCDT sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-REGSS sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-ACTSS sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-STCD3 sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-STCD4 sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-IPISP sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-TAXBS sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-PROFS sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-STGDL sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-EMNFR sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-NODEL sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-J_1KFREPRE sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-J_1KFTBUS sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-J_1KFTIND sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-QSSYSDAT sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-PODKZB sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-FISKU sy-vline 
WA_E102MDS_EI_VMD_CENTRAL_DATA_STR-STENR sy-vline      INTO ld_text SEPARATED BY SPACE.

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