ABAP Select data from SAP table WES_S_RUNTIME_PARAM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WES_S_RUNTIME_PARAM
*  INTO TABLE @DATA(IT_WES_S_RUNTIME_PARAM2).
*--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_WES_S_RUNTIME_PARAM INDEX 1 INTO DATA(WA_WES_S_RUNTIME_PARAM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WES_S_RUNTIME_PARAM>-DLMOD = 1.
<WES_S_RUNTIME_PARAM>-APPL = 1.
<WES_S_RUNTIME_PARAM>-SERV_IMPL = 1.
<WES_S_RUNTIME_PARAM>-SERV_OPERATION = 1.
<WES_S_RUNTIME_PARAM>-BO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WES_S_RUNTIME_PARAM-FOBJ, sy-vline,
  WA_WES_S_RUNTIME_PARAM-PROXY_CLASS, sy-vline,
  WA_WES_S_RUNTIME_PARAM-ALSORT, sy-vline,
  WA_WES_S_RUNTIME_PARAM-TASKNAME_COUNTER, sy-vline,
  WA_WES_S_RUNTIME_PARAM-PARALLEL, sy-vline,
  WA_WES_S_RUNTIME_PARAM-TESTRUN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WES_S_RUNTIME_PARAM 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_WES_S_RUNTIME_PARAM 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_WES_S_RUNTIME_PARAM INTO WA_WES_S_RUNTIME_PARAM.


*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_WES_S_RUNTIME_PARAM_STR, 
DLMOD TYPE STRING,
APPL TYPE STRING,
SERV_IMPL TYPE STRING,
SERV_OPERATION TYPE STRING,
BO TYPE STRING,
FOBJ TYPE STRING,
PROXY_CLASS TYPE STRING,
ALSORT TYPE STRING,
TASKNAME_COUNTER TYPE STRING,
PARALLEL TYPE STRING,
TESTRUN TYPE STRING,
SERVER_GROUP TYPE STRING,
START_DATE TYPE STRING,
START_TIME TYPE STRING,
BUSINESS_SYSTEM TYPE STRING,
ALEMESSTYPE TYPE STRING,
PACKAGE_SIZE TYPE STRING,
FILTER_TP TYPE STRING,
DELETE_DATA TYPE STRING,
TO_C_LANGUAGE TYPE STRING,
TO_C_NODE TYPE STRING,
MAX_NO_PARALLEL_PROCESSES TYPE STRING,
SALES_PRICE_MULTI_READ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WES_S_RUNTIME_PARAM_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_WES_S_RUNTIME_PARAM_STR-DLMOD sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-APPL sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-SERV_IMPL sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-SERV_OPERATION sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-BO sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-FOBJ sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-PROXY_CLASS sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-ALSORT sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-TASKNAME_COUNTER sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-PARALLEL sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-TESTRUN sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-SERVER_GROUP sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-START_DATE sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-START_TIME sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-BUSINESS_SYSTEM sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-ALEMESSTYPE sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-PACKAGE_SIZE sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-FILTER_TP sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-DELETE_DATA sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-TO_C_LANGUAGE sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-TO_C_NODE sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-MAX_NO_PARALLEL_PROCESSES sy-vline 
WA_WES_S_RUNTIME_PARAM_STR-SALES_PRICE_MULTI_READ sy-vline      INTO ld_text SEPARATED BY SPACE.

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