ABAP Select data from SAP table HCMT_BSP_PA_BE_R3270 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HCMT_BSP_PA_BE_R3270 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 HCMT_BSP_PA_BE_R3270. 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 HCMT_BSP_PA_BE_R3270 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_HCMT_BSP_PA_BE_R3270 TYPE STANDARD TABLE OF HCMT_BSP_PA_BE_R3270,
      WA_HCMT_BSP_PA_BE_R3270 TYPE HCMT_BSP_PA_BE_R3270,
      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: <HCMT_BSP_PA_BE_R3270> TYPE HCMT_BSP_PA_BE_R3270.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HCMT_BSP_PA_BE_R3270.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HCMT_BSP_PA_BE_R3270
  INTO TABLE IT_HCMT_BSP_PA_BE_R3270.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HCMT_BSP_PA_BE_R3270
*  INTO TABLE @DATA(IT_HCMT_BSP_PA_BE_R32702).
*--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_HCMT_BSP_PA_BE_R3270 INDEX 1 INTO DATA(WA_HCMT_BSP_PA_BE_R32702).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HCMT_BSP_PA_BE_R3270 ASSIGNING <HCMT_BSP_PA_BE_R3270>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HCMT_BSP_PA_BE_R3270>-OBJECT_KEY = 1.
<HCMT_BSP_PA_BE_R3270>-PERNR = 1.
<HCMT_BSP_PA_BE_R3270>-AEDTM = 1.
<HCMT_BSP_PA_BE_R3270>-UNAME = 1.
<HCMT_BSP_PA_BE_R3270>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_HCMT_BSP_PA_BE_R3270 INTO WA_HCMT_BSP_PA_BE_R3270.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HCMT_BSP_PA_BE_R3270-SPRTX, sy-vline,
  WA_HCMT_BSP_PA_BE_R3270-ITBLD, sy-vline,
  WA_HCMT_BSP_PA_BE_R3270-ITXEX, sy-vline,
  WA_HCMT_BSP_PA_BE_R3270-BEGDA, sy-vline,
  WA_HCMT_BSP_PA_BE_R3270-ENDDA, sy-vline,
  WA_HCMT_BSP_PA_BE_R3270-CIPID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HCMT_BSP_PA_BE_R3270 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_HCMT_BSP_PA_BE_R3270 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_HCMT_BSP_PA_BE_R3270 INTO WA_HCMT_BSP_PA_BE_R3270.


*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_HCMT_BSP_PA_BE_R3270_STR, 
OBJECT_KEY TYPE STRING,
PERNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
SPRPS TYPE STRING,
SPRTX TYPE STRING,
ITBLD TYPE STRING,
ITXEX TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
CIPID TYPE STRING,
ALSGR TYPE STRING,
ALLGA TYPE STRING,
ALBET TYPE STRING,
DBNOT TYPE STRING,
FPDAT TYPE STRING,
FPAGE TYPE STRING,
NUMMO TYPE STRING,
QNUMMO TYPE STRING,
BEGPC TYPE STRING,
NACEC TYPE STRING,
RSZCA TYPE STRING,
RSZCATXT TYPE STRING,
RSZKN TYPE STRING,
RSZKNTXT TYPE STRING,
BEGGH TYPE STRING,
ERNID TYPE STRING,
HTIND TYPE STRING,
RPLEE TYPE STRING,
QRPLEE TYPE STRING,
SEREX TYPE STRING,
KNTXT TYPE STRING,
TYTXT TYPE STRING,
DBTXT TYPE STRING,
BETXT TYPE STRING,
NATXT TYPE STRING,
SETXT TYPE STRING,
CATXT TYPE STRING,
BGTXT TYPE STRING,
ALTXT TYPE STRING,
WAERS TYPE STRING,
SUBTY TYPE STRING,
SUBTYTXT TYPE STRING,
NOTDT TYPE STRING,
ADNOT TYPE STRING,
ADNOTTXT TYPE STRING,
AILRE TYPE STRING,
AKBEG TYPE STRING,
AKEND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HCMT_BSP_PA_BE_R3270_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_HCMT_BSP_PA_BE_R3270_STR-OBJECT_KEY sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-PERNR sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-AEDTM sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-UNAME sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-SPRPS sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-SPRTX sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-ITBLD sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-ITXEX sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-BEGDA sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-ENDDA sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-CIPID sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-ALSGR sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-ALLGA sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-ALBET sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-DBNOT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-FPDAT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-FPAGE sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-NUMMO sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-QNUMMO sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-BEGPC sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-NACEC sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-RSZCA sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-RSZCATXT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-RSZKN sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-RSZKNTXT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-BEGGH sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-ERNID sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-HTIND sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-RPLEE sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-QRPLEE sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-SEREX sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-KNTXT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-TYTXT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-DBTXT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-BETXT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-NATXT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-SETXT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-CATXT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-BGTXT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-ALTXT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-WAERS sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-SUBTY sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-SUBTYTXT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-NOTDT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-ADNOT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-ADNOTTXT sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-AILRE sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-AKBEG sy-vline 
WA_HCMT_BSP_PA_BE_R3270_STR-AKEND sy-vline      INTO ld_text SEPARATED BY SPACE.

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