ABAP Select data from SAP table MDG_GW_S_SEARCH_BP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MDG_GW_S_SEARCH_BP 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_GW_S_SEARCH_BP. 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_GW_S_SEARCH_BP 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_GW_S_SEARCH_BP TYPE STANDARD TABLE OF MDG_GW_S_SEARCH_BP,
      WA_MDG_GW_S_SEARCH_BP TYPE MDG_GW_S_SEARCH_BP,
      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_GW_S_SEARCH_BP> TYPE MDG_GW_S_SEARCH_BP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MDG_GW_S_SEARCH_BP
*  INTO TABLE @DATA(IT_MDG_GW_S_SEARCH_BP2).
*--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_GW_S_SEARCH_BP INDEX 1 INTO DATA(WA_MDG_GW_S_SEARCH_BP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MDG_GW_S_SEARCH_BP>-STREET = 1.
<MDG_GW_S_SEARCH_BP>-USMD_VALUE = 1.
<MDG_GW_S_SEARCH_BP>-TXTLG = 1.
<MDG_GW_S_SEARCH_BP>-USMD_ENTITY = 1.
<MDG_GW_S_SEARCH_BP>-USMD_ATTRIBUTE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MDG_GW_S_SEARCH_BP-USMD_ACTIVE, sy-vline,
  WA_MDG_GW_S_SEARCH_BP-T_NR_LONG, sy-vline,
  WA_MDG_GW_S_SEARCH_BP-T_FLGMOB, sy-vline,
  WA_MDG_GW_S_SEARCH_BP-RANK, sy-vline,
  WA_MDG_GW_S_SEARCH_BP-POST_COD1, sy-vline,
  WA_MDG_GW_S_SEARCH_BP-MC_CITY1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MDG_GW_S_SEARCH_BP 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_GW_S_SEARCH_BP 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_GW_S_SEARCH_BP INTO WA_MDG_GW_S_SEARCH_BP.


*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.

*Conversion exit SXIDN, internal->external for field E_ADDRESS
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_MDG_GW_S_SEARCH_BP-E_ADDRESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDG_GW_S_SEARCH_BP-E_ADDRESS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BP_HEADER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MDG_GW_S_SEARCH_BP-BP_HEADER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDG_GW_S_SEARCH_BP-BP_HEADER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDRNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MDG_GW_S_SEARCH_BP-ADDRNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDG_GW_S_SEARCH_BP-ADDRNO.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_MDG_GW_S_SEARCH_BP_STR, 
STREET TYPE STRING,
USMD_VALUE TYPE STRING,
TXTLG TYPE STRING,
USMD_ENTITY TYPE STRING,
USMD_ATTRIBUTE TYPE STRING,
USMD_ACTIVE TYPE STRING,
T_NR_LONG TYPE STRING,
T_FLGMOB TYPE STRING,
RANK TYPE STRING,
POST_COD1 TYPE STRING,
MC_CITY1 TYPE STRING,
LANDX50 TYPE STRING,
REF_POSTA TYPE STRING,
IBAN TYPE STRING,
HOUSE_NR1 TYPE STRING,
E_ADDRESS TYPE STRING,
BU_TYPE TYPE STRING,
NAM_FIRST TYPE STRING,
NAME_LAST TYPE STRING,
NAME_ORG1 TYPE STRING,
NAME_ORG2 TYPE STRING,
BU_TEXT40 TYPE STRING,
BU_GROUP TYPE STRING,
BP_IDTYPE TYPE STRING,
BP_ID_NUM TYPE STRING,
BP_HEADER TYPE STRING,
BANKS TYPE STRING,
BANKN TYPE STRING,
BANKL TYPE STRING,
BANKCOUNTRYTEXT TYPE STRING,
BANKA TYPE STRING,
BANK_ID TYPE STRING,
ADDRNO TYPE STRING,
AD_NATION TYPE STRING,
AD_CONSNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MDG_GW_S_SEARCH_BP_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_GW_S_SEARCH_BP_STR-STREET sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-USMD_VALUE sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-TXTLG sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-USMD_ENTITY sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-USMD_ATTRIBUTE sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-USMD_ACTIVE sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-T_NR_LONG sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-T_FLGMOB sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-RANK sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-POST_COD1 sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-MC_CITY1 sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-LANDX50 sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-REF_POSTA sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-IBAN sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-HOUSE_NR1 sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-E_ADDRESS sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-BU_TYPE sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-NAM_FIRST sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-NAME_LAST sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-NAME_ORG1 sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-NAME_ORG2 sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-BU_TEXT40 sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-BU_GROUP sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-BP_IDTYPE sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-BP_ID_NUM sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-BP_HEADER sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-BANKS sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-BANKN sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-BANKL sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-BANKCOUNTRYTEXT sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-BANKA sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-BANK_ID sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-ADDRNO sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-AD_NATION sy-vline 
WA_MDG_GW_S_SEARCH_BP_STR-AD_CONSNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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