ABAP Select data from SAP table WSWORK_PROCESS into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WSWORK_PROCESS
*  INTO TABLE @DATA(IT_WSWORK_PROCESS2).
*--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_WSWORK_PROCESS INDEX 1 INTO DATA(WA_WSWORK_PROCESS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WSWORK_PROCESS>-CONTROLLER = 1.
<WSWORK_PROCESS>-NO = 1.
<WSWORK_PROCESS>-TYP = 1.
<WSWORK_PROCESS>-PID = 1.
<WSWORK_PROCESS>-STATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WSWORK_PROCESS-REASON, sy-vline,
  WA_WSWORK_PROCESS-START, sy-vline,
  WA_WSWORK_PROCESS-ERR, sy-vline,
  WA_WSWORK_PROCESS-SEM, sy-vline,
  WA_WSWORK_PROCESS-CPU, sy-vline,
  WA_WSWORK_PROCESS-TIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WSWORK_PROCESS 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_WSWORK_PROCESS 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_WSWORK_PROCESS INTO WA_WSWORK_PROCESS.


*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_WSWORK_PROCESS_STR, 
CONTROLLER TYPE STRING,
NO TYPE STRING,
TYP TYPE STRING,
PID TYPE STRING,
STATUS TYPE STRING,
REASON TYPE STRING,
START TYPE STRING,
ERR TYPE STRING,
SEM TYPE STRING,
CPU TYPE STRING,
TIME TYPE STRING,
PROGRAM TYPE STRING,
CLIENT TYPE STRING,
USER TYPE STRING,
ACTION TYPE STRING,
TABLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WSWORK_PROCESS_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_WSWORK_PROCESS_STR-CONTROLLER sy-vline 
WA_WSWORK_PROCESS_STR-NO sy-vline 
WA_WSWORK_PROCESS_STR-TYP sy-vline 
WA_WSWORK_PROCESS_STR-PID sy-vline 
WA_WSWORK_PROCESS_STR-STATUS sy-vline 
WA_WSWORK_PROCESS_STR-REASON sy-vline 
WA_WSWORK_PROCESS_STR-START sy-vline 
WA_WSWORK_PROCESS_STR-ERR sy-vline 
WA_WSWORK_PROCESS_STR-SEM sy-vline 
WA_WSWORK_PROCESS_STR-CPU sy-vline 
WA_WSWORK_PROCESS_STR-TIME sy-vline 
WA_WSWORK_PROCESS_STR-PROGRAM sy-vline 
WA_WSWORK_PROCESS_STR-CLIENT sy-vline 
WA_WSWORK_PROCESS_STR-USER sy-vline 
WA_WSWORK_PROCESS_STR-ACTION sy-vline 
WA_WSWORK_PROCESS_STR-TABLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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