ABAP Select data from SAP table /SRMSMC/S_DNB_LU into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SRMSMC/S_DNB_LU 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 /SRMSMC/S_DNB_LU. 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 /SRMSMC/S_DNB_LU 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_/SRMSMC/S_DNB_LU TYPE STANDARD TABLE OF /SRMSMC/S_DNB_LU,
      WA_/SRMSMC/S_DNB_LU TYPE /SRMSMC/S_DNB_LU,
      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: </SRMSMC/S_DNB_LU> TYPE /SRMSMC/S_DNB_LU.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SRMSMC/S_DNB_LU
  INTO TABLE IT_/SRMSMC/S_DNB_LU.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SRMSMC/S_DNB_LU
*  INTO TABLE @DATA(IT_/SRMSMC/S_DNB_LU2).
*--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_/SRMSMC/S_DNB_LU INDEX 1 INTO DATA(WA_/SRMSMC/S_DNB_LU2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SRMSMC/S_DNB_LU ASSIGNING </SRMSMC/S_DNB_LU>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SRMSMC/S_DNB_LU>-DUNS = 1.
</SRMSMC/S_DNB_LU>-REQUEST = 1.
</SRMSMC/S_DNB_LU>-CREA_UNAME = 1.
</SRMSMC/S_DNB_LU>-ADR_LINE = 1.
</SRMSMC/S_DNB_LU>-BR_IND = 1.

ENDLOOP.

LOOP AT IT_/SRMSMC/S_DNB_LU INTO WA_/SRMSMC/S_DNB_LU.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SRMSMC/S_DNB_LU-CONF_CD, sy-vline,
  WA_/SRMSMC/S_DNB_LU-CTRY_CD, sy-vline,
  WA_/SRMSMC/S_DNB_LU-DSR, sy-vline,
  WA_/SRMSMC/S_DNB_LU-DUNS_NBR, sy-vline,
  WA_/SRMSMC/S_DNB_LU-IN_DT_IND, sy-vline,
  WA_/SRMSMC/S_DNB_LU-MTCH_GRD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SRMSMC/S_DNB_LU 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_/SRMSMC/S_DNB_LU 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_/SRMSMC/S_DNB_LU INTO WA_/SRMSMC/S_DNB_LU.


*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_/SRMSMC/S_DNB_LU_STR, 
DUNS TYPE STRING,
REQUEST TYPE STRING,
CREA_UNAME TYPE STRING,
ADR_LINE TYPE STRING,
BR_IND TYPE STRING,
CONF_CD TYPE STRING,
CTRY_CD TYPE STRING,
DSR TYPE STRING,
DUNS_NBR TYPE STRING,
IN_DT_IND TYPE STRING,
MTCH_GRD TYPE STRING,
NME TYPE STRING,
NME_PCT_GRD TYPE STRING,
NON_POST_TOWN TYPE STRING,
NON_POST_TWN_PCT_GRD TYPE STRING,
PRIM_GEO_AREA TYPE STRING,
POST_CODE TYPE STRING,
POST_TOWN TYPE STRING,
PO_BOX_PCT_GRD TYPE STRING,
PRIM_GEO_AREA_NBR_PCT_GRD TYPE STRING,
PROB_OF_ACCR TYPE STRING,
STR_NBR_PCT_GRD TYPE STRING,
STR_NME_PCT_GRD TYPE STRING,
SBRI_UMTC_AGN TYPE STRING,
TLCM_NBR TYPE STRING,
TLCM_PCT_GRD TYPE STRING,
TRDG_STYL TYPE STRING,
MTCH_BASS TYPE STRING,
MTCH_BASS_ENTR TYPE STRING,
ARRAY_OF_MTCH_BASS_ENTRITEM TYPE STRING,
MTCH_CNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SRMSMC/S_DNB_LU_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_/SRMSMC/S_DNB_LU_STR-DUNS sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-REQUEST sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-CREA_UNAME sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-ADR_LINE sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-BR_IND sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-CONF_CD sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-CTRY_CD sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-DSR sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-DUNS_NBR sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-IN_DT_IND sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-MTCH_GRD sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-NME sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-NME_PCT_GRD sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-NON_POST_TOWN sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-NON_POST_TWN_PCT_GRD sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-PRIM_GEO_AREA sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-POST_CODE sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-POST_TOWN sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-PO_BOX_PCT_GRD sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-PRIM_GEO_AREA_NBR_PCT_GRD sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-PROB_OF_ACCR sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-STR_NBR_PCT_GRD sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-STR_NME_PCT_GRD sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-SBRI_UMTC_AGN sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-TLCM_NBR sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-TLCM_PCT_GRD sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-TRDG_STYL sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-MTCH_BASS sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-MTCH_BASS_ENTR sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-ARRAY_OF_MTCH_BASS_ENTRITEM sy-vline 
WA_/SRMSMC/S_DNB_LU_STR-MTCH_CNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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