ABAP Select data from SAP table EHSBS_RC_EXPLBUF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHSBS_RC_EXPLBUF
*  INTO TABLE @DATA(IT_EHSBS_RC_EXPLBUF2).
*--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_EHSBS_RC_EXPLBUF INDEX 1 INTO DATA(WA_EHSBS_RC_EXPLBUF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHSBS_RC_EXPLBUF>-RECN = 1.
<EHSBS_RC_EXPLBUF>-ACTN = 1.
<EHSBS_RC_EXPLBUF>-COMPTYPE = 1.
<EHSBS_RC_EXPLBUF>-POSNR = 1.
<EHSBS_RC_EXPLBUF>-ROLE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHSBS_RC_EXPLBUF-COMPTGT, sy-vline,
  WA_EHSBS_RC_EXPLBUF-OPLOW, sy-vline,
  WA_EHSBS_RC_EXPLBUF-COMPLOW, sy-vline,
  WA_EHSBS_RC_EXPLBUF-OPUP, sy-vline,
  WA_EHSBS_RC_EXPLBUF-COMPUPP, sy-vline,
  WA_EHSBS_RC_EXPLBUF-UNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHSBS_RC_EXPLBUF 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_EHSBS_RC_EXPLBUF 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_EHSBS_RC_EXPLBUF INTO WA_EHSBS_RC_EXPLBUF.


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

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

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EHSBS_RC_EXPLBUF-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHSBS_RC_EXPLBUF-UNIT.
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_EHSBS_RC_EXPLBUF_STR, 
RECN TYPE STRING,
ACTN TYPE STRING,
COMPTYPE TYPE STRING,
POSNR TYPE STRING,
ROLE TYPE STRING,
COMPTGT TYPE STRING,
OPLOW TYPE STRING,
COMPLOW TYPE STRING,
OPUP TYPE STRING,
COMPUPP TYPE STRING,
UNIT TYPE STRING,
EXCVAL TYPE STRING,
COMPTGT_FLT TYPE STRING,
COMPLOW_FLT TYPE STRING,
COMPUPP_FLT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHSBS_RC_EXPLBUF_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_EHSBS_RC_EXPLBUF_STR-RECN sy-vline 
WA_EHSBS_RC_EXPLBUF_STR-ACTN sy-vline 
WA_EHSBS_RC_EXPLBUF_STR-COMPTYPE sy-vline 
WA_EHSBS_RC_EXPLBUF_STR-POSNR sy-vline 
WA_EHSBS_RC_EXPLBUF_STR-ROLE sy-vline 
WA_EHSBS_RC_EXPLBUF_STR-COMPTGT sy-vline 
WA_EHSBS_RC_EXPLBUF_STR-OPLOW sy-vline 
WA_EHSBS_RC_EXPLBUF_STR-COMPLOW sy-vline 
WA_EHSBS_RC_EXPLBUF_STR-OPUP sy-vline 
WA_EHSBS_RC_EXPLBUF_STR-COMPUPP sy-vline 
WA_EHSBS_RC_EXPLBUF_STR-UNIT sy-vline 
WA_EHSBS_RC_EXPLBUF_STR-EXCVAL sy-vline 
WA_EHSBS_RC_EXPLBUF_STR-COMPTGT_FLT sy-vline 
WA_EHSBS_RC_EXPLBUF_STR-COMPLOW_FLT sy-vline 
WA_EHSBS_RC_EXPLBUF_STR-COMPUPP_FLT sy-vline      INTO ld_text SEPARATED BY SPACE.

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