ABAP Select data from SAP table SWW_HLPSTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SWW_HLPSTR
*  INTO TABLE @DATA(IT_SWW_HLPSTR2).
*--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_SWW_HLPSTR INDEX 1 INTO DATA(WA_SWW_HLPSTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SWW_HLPSTR>-LOG_DATE = 1.
<SWW_HLPSTR>-LOG_TIME = 1.
<SWW_HLPSTR>-FB_NAME = 1.
<SWW_HLPSTR>-DO_COMMIT = 1.
<SWW_HLPSTR>-EXEC_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SWW_HLPSTR-EXEC_USER, sy-vline,
  WA_SWW_HLPSTR-EXEC_ADDR, sy-vline,
  WA_SWW_HLPSTR-IDTYPE, sy-vline,
  WA_SWW_HLPSTR-IDYEAR, sy-vline,
  WA_SWW_HLPSTR-IDNUMBER, sy-vline,
  WA_SWW_HLPSTR-SENDTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SWW_HLPSTR 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_SWW_HLPSTR 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_SWW_HLPSTR INTO WA_SWW_HLPSTR.


*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_SWW_HLPSTR_STR, 
LOG_DATE TYPE STRING,
LOG_TIME TYPE STRING,
FB_NAME TYPE STRING,
DO_COMMIT TYPE STRING,
EXEC_TYPE TYPE STRING,
EXEC_USER TYPE STRING,
EXEC_ADDR TYPE STRING,
IDTYPE TYPE STRING,
IDYEAR TYPE STRING,
IDNUMBER TYPE STRING,
SENDTYPE TYPE STRING,
SEQUENCENO TYPE STRING,
RET_CODES TYPE STRING,
OM_BINDEF TYPE STRING,
METH_LIST TYPE STRING,
WI_CONT TYPE STRING,
WI_CONT_B TYPE STRING,
WI_CONT_M TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SWW_HLPSTR_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_SWW_HLPSTR_STR-LOG_DATE sy-vline 
WA_SWW_HLPSTR_STR-LOG_TIME sy-vline 
WA_SWW_HLPSTR_STR-FB_NAME sy-vline 
WA_SWW_HLPSTR_STR-DO_COMMIT sy-vline 
WA_SWW_HLPSTR_STR-EXEC_TYPE sy-vline 
WA_SWW_HLPSTR_STR-EXEC_USER sy-vline 
WA_SWW_HLPSTR_STR-EXEC_ADDR sy-vline 
WA_SWW_HLPSTR_STR-IDTYPE sy-vline 
WA_SWW_HLPSTR_STR-IDYEAR sy-vline 
WA_SWW_HLPSTR_STR-IDNUMBER sy-vline 
WA_SWW_HLPSTR_STR-SENDTYPE sy-vline 
WA_SWW_HLPSTR_STR-SEQUENCENO sy-vline 
WA_SWW_HLPSTR_STR-RET_CODES sy-vline 
WA_SWW_HLPSTR_STR-OM_BINDEF sy-vline 
WA_SWW_HLPSTR_STR-METH_LIST sy-vline 
WA_SWW_HLPSTR_STR-WI_CONT sy-vline 
WA_SWW_HLPSTR_STR-WI_CONT_B sy-vline 
WA_SWW_HLPSTR_STR-WI_CONT_M sy-vline      INTO ld_text SEPARATED BY SPACE.

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