ABAP Select data from SAP table MDG_BS_CUST_BP_CUSGEN_X into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MDG_BS_CUST_BP_CUSGEN_X
*  INTO TABLE @DATA(IT_MDG_BS_CUST_BP_CUSGEN_X2).
*--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_MDG_BS_CUST_BP_CUSGEN_X INDEX 1 INTO DATA(WA_MDG_BS_CUST_BP_CUSGEN_X2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MDG_BS_CUST_BP_CUSGEN_X>-ASSGNM_ID = 1.
<MDG_BS_CUST_BP_CUSGEN_X>-BP_HEADER = 1.
<MDG_BS_CUST_BP_CUSGEN_X>-AUFSD = 1.
<MDG_BS_CUST_BP_CUSGEN_X>-BAHNE = 1.
<MDG_BS_CUST_BP_CUSGEN_X>-BEGRU = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MDG_BS_CUST_BP_CUSGEN_X-BRAN1, sy-vline,
  WA_MDG_BS_CUST_BP_CUSGEN_X-BRAN2, sy-vline,
  WA_MDG_BS_CUST_BP_CUSGEN_X-BRAN3, sy-vline,
  WA_MDG_BS_CUST_BP_CUSGEN_X-BRAN4, sy-vline,
  WA_MDG_BS_CUST_BP_CUSGEN_X-BRAN5, sy-vline,
  WA_MDG_BS_CUST_BP_CUSGEN_X-BROBJ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MDG_BS_CUST_BP_CUSGEN_X 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_MDG_BS_CUST_BP_CUSGEN_X 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_MDG_BS_CUST_BP_CUSGEN_X INTO WA_MDG_BS_CUST_BP_CUSGEN_X.


*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_MDG_BS_CUST_BP_CUSGEN_X_STR, 
ASSGNM_ID TYPE STRING,
BP_HEADER TYPE STRING,
AUFSD TYPE STRING,
BAHNE TYPE STRING,
BEGRU TYPE STRING,
BRAN1 TYPE STRING,
BRAN2 TYPE STRING,
BRAN3 TYPE STRING,
BRAN4 TYPE STRING,
BRAN5 TYPE STRING,
BROBJ TYPE STRING,
CASSD TYPE STRING,
CCC01 TYPE STRING,
CCC02 TYPE STRING,
CCC03 TYPE STRING,
CCC04 TYPE STRING,
CFOPC TYPE STRING,
CITYC TYPE STRING,
CIVVE TYPE STRING,
COUNC TYPE STRING,
COUNTRY TYPE STRING,
CUS_BAHNS TYPE STRING,
CUS_DTAMS TYPE STRING,
CUS_FISKN TYPE STRING,
CUS_KONZS TYPE STRING,
CUS_LANGU TYPE STRING,
CUS_LIFNR TYPE STRING,
CUS_LOEVM TYPE STRING,
CUS_NODEL TYPE STRING,
CUS_SPERR TYPE STRING,
CUS_STKZA TYPE STRING,
CUS_STKZU TYPE STRING,
CUS_VBUND TYPE STRING,
CUS_XZEMP TYPE STRING,
DTAWS TYPE STRING,
FAKSD TYPE STRING,
FITYP TYPE STRING,
JMJAH TYPE STRING,
JMZAH TYPE STRING,
J_1KFREPR TYPE STRING,
J_1KFTBUS TYPE STRING,
J_1KFTIND TYPE STRING,
KATR1 TYPE STRING,
KATR10 TYPE STRING,
KATR2 TYPE STRING,
KATR3 TYPE STRING,
KATR4 TYPE STRING,
KATR5 TYPE STRING,
KATR6 TYPE STRING,
KATR7 TYPE STRING,
KATR8 TYPE STRING,
KATR9 TYPE STRING,
KDKG1 TYPE STRING,
KDKG2 TYPE STRING,
KDKG3 TYPE STRING,
KDKG4 TYPE STRING,
KDKG5 TYPE STRING,
KNRZA TYPE STRING,
KTOKD TYPE STRING,
KUKLA TYPE STRING,
KUNNR TYPE STRING,
LAND1 TYPE STRING,
LIFSD TYPE STRING,
LOCCO TYPE STRING,
MILVE TYPE STRING,
NIELS TYPE STRING,
PERIV TYPE STRING,
PYMT_METH TYPE STRING,
REGION TYPE STRING,
UMJAH TYPE STRING,
UMSA1 TYPE STRING,
UWAER TYPE STRING,
XICMS TYPE STRING,
XSUBT TYPE STRING,
XXIPI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MDG_BS_CUST_BP_CUSGEN_X_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_MDG_BS_CUST_BP_CUSGEN_X_STR-ASSGNM_ID sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-BP_HEADER sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-AUFSD sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-BAHNE sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-BEGRU sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-BRAN1 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-BRAN2 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-BRAN3 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-BRAN4 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-BRAN5 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-BROBJ sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CASSD sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CCC01 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CCC02 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CCC03 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CCC04 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CFOPC sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CITYC sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CIVVE sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-COUNC sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-COUNTRY sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CUS_BAHNS sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CUS_DTAMS sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CUS_FISKN sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CUS_KONZS sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CUS_LANGU sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CUS_LIFNR sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CUS_LOEVM sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CUS_NODEL sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CUS_SPERR sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CUS_STKZA sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CUS_STKZU sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CUS_VBUND sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-CUS_XZEMP sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-DTAWS sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-FAKSD sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-FITYP sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-JMJAH sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-JMZAH sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-J_1KFREPR sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-J_1KFTBUS sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-J_1KFTIND sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KATR1 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KATR10 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KATR2 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KATR3 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KATR4 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KATR5 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KATR6 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KATR7 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KATR8 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KATR9 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KDKG1 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KDKG2 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KDKG3 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KDKG4 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KDKG5 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KNRZA sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KTOKD sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KUKLA sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-KUNNR sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-LAND1 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-LIFSD sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-LOCCO sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-MILVE sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-NIELS sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-PERIV sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-PYMT_METH sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-REGION sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-UMJAH sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-UMSA1 sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-UWAER sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-XICMS sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-XSUBT sy-vline 
WA_MDG_BS_CUST_BP_CUSGEN_X_STR-XXIPI sy-vline      INTO ld_text SEPARATED BY SPACE.

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