ABAP Select data from SAP table /SRMSMC/PX_S_DNB_DGX3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SRMSMC/PX_S_DNB_DGX3 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/PX_S_DNB_DGX3. 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/PX_S_DNB_DGX3 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/PX_S_DNB_DGX3 TYPE STANDARD TABLE OF /SRMSMC/PX_S_DNB_DGX3,
      WA_/SRMSMC/PX_S_DNB_DGX3 TYPE /SRMSMC/PX_S_DNB_DGX3,
      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/PX_S_DNB_DGX3> TYPE /SRMSMC/PX_S_DNB_DGX3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SRMSMC/PX_S_DNB_DGX3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SRMSMC/PX_S_DNB_DGX3
  INTO TABLE IT_/SRMSMC/PX_S_DNB_DGX3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SRMSMC/PX_S_DNB_DGX3
*  INTO TABLE @DATA(IT_/SRMSMC/PX_S_DNB_DGX32).
*--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/PX_S_DNB_DGX3 INDEX 1 INTO DATA(WA_/SRMSMC/PX_S_DNB_DGX32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SRMSMC/PX_S_DNB_DGX3 ASSIGNING </SRMSMC/PX_S_DNB_DGX3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SRMSMC/PX_S_DNB_DGX3>-CONTROLLER = 1.
</SRMSMC/PX_S_DNB_DGX3>-SIGNONMSGSRSV1 = 1.
</SRMSMC/PX_S_DNB_DGX3>-CONTROLLER = 1.
</SRMSMC/PX_S_DNB_DGX3>-SONRS = 1.
</SRMSMC/PX_S_DNB_DGX3>-CONTROLLER = 1.

ENDLOOP.

LOOP AT IT_/SRMSMC/PX_S_DNB_DGX3 INTO WA_/SRMSMC/PX_S_DNB_DGX3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SRMSMC/PX_S_DNB_DGX3-STATUS, sy-vline,
  WA_/SRMSMC/PX_S_DNB_DGX3-CONTROLLER, sy-vline,
  WA_/SRMSMC/PX_S_DNB_DGX3-CODE, sy-vline,
  WA_/SRMSMC/PX_S_DNB_DGX3-SEVERITY, sy-vline,
  WA_/SRMSMC/PX_S_DNB_DGX3-MESSAGE, sy-vline,
  WA_/SRMSMC/PX_S_DNB_DGX3-DTSERVER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SRMSMC/PX_S_DNB_DGX3 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/PX_S_DNB_DGX3 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/PX_S_DNB_DGX3 INTO WA_/SRMSMC/PX_S_DNB_DGX3.


*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/PX_S_DNB_DGX3_STR, 
CONTROLLER TYPE STRING,
SIGNONMSGSRSV1 TYPE STRING,
CONTROLLER TYPE STRING,
SONRS TYPE STRING,
CONTROLLER TYPE STRING,
STATUS TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
SEVERITY TYPE STRING,
MESSAGE TYPE STRING,
DTSERVER TYPE STRING,
LANGUAGE TYPE STRING,
CREDITMSGSRSV2 TYPE STRING,
CONTROLLER TYPE STRING,
DATATRNRS TYPE STRING,
CONTROLLER TYPE STRING,
TRNUID TYPE STRING,
STATUS TYPE STRING,
CONTROLLER TYPE STRING,
CODE TYPE STRING,
SEVERITY TYPE STRING,
MESSAGE TYPE STRING,
DATARS TYPE STRING,
CONTROLLER TYPE STRING,
SRVRTID TYPE STRING,
GDA_ID TYPE STRING,
CACHE_IND TYPE STRING,
PRD_DT TYPE STRING,
SECTION TYPE STRING,
CONTROLLER TYPE STRING,
HDG TYPE STRING,
BODY TYPE STRING,
CORPORATE_LINKAGE TYPE STRING,
CONTROLLER TYPE STRING,
DUNS_NBR TYPE STRING,
ENQ_DUNS TYPE STRING,
OUT_BUS_IND TYPE STRING,
PRIM_NME TYPE STRING,
BR_IND TYPE STRING,
BUS_STRU TYPE STRING,
LOCN_STAT TYPE STRING,
HQ_NME TYPE STRING,
HQ_DUNS TYPE STRING,
HQ_CTRY_CD TYPE STRING,
CTRY_CD TYPE STRING,
PNT_NME TYPE STRING,
PNT_DUNS TYPE STRING,
PNT_CTRY_CD TYPE STRING,
DOM_ULT_PNT_NME TYPE STRING,
DOM_ULT_PNT_DUNS TYPE STRING,
DOM_ULT_CTRY_CD TYPE STRING,
GBL_ULT_PNT_NME TYPE STRING,
GBL_ULT_PNT_DUNS TYPE STRING,
GBL_ULT_CTRY_CD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SRMSMC/PX_S_DNB_DGX3_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/PX_S_DNB_DGX3_STR-CONTROLLER sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-SIGNONMSGSRSV1 sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CONTROLLER sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-SONRS sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CONTROLLER sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-STATUS sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CONTROLLER sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CODE sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-SEVERITY sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-MESSAGE sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-DTSERVER sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-LANGUAGE sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CREDITMSGSRSV2 sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CONTROLLER sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-DATATRNRS sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CONTROLLER sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-TRNUID sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-STATUS sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CONTROLLER sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CODE sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-SEVERITY sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-MESSAGE sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-DATARS sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CONTROLLER sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-SRVRTID sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-GDA_ID sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CACHE_IND sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-PRD_DT sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-SECTION sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CONTROLLER sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-HDG sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-BODY sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CORPORATE_LINKAGE sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CONTROLLER sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-DUNS_NBR sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-ENQ_DUNS sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-OUT_BUS_IND sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-PRIM_NME sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-BR_IND sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-BUS_STRU sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-LOCN_STAT sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-HQ_NME sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-HQ_DUNS sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-HQ_CTRY_CD sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-CTRY_CD sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-PNT_NME sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-PNT_DUNS sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-PNT_CTRY_CD sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-DOM_ULT_PNT_NME sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-DOM_ULT_PNT_DUNS sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-DOM_ULT_CTRY_CD sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-GBL_ULT_PNT_NME sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-GBL_ULT_PNT_DUNS sy-vline 
WA_/SRMSMC/PX_S_DNB_DGX3_STR-GBL_ULT_CTRY_CD sy-vline      INTO ld_text SEPARATED BY SPACE.

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