ABAP Select data from SAP table WFA_TS_WRKRULE_EN_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WFA_TS_WRKRULE_EN_DATA
*  INTO TABLE @DATA(IT_WFA_TS_WRKRULE_EN_DATA2).
*--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_WFA_TS_WRKRULE_EN_DATA INDEX 1 INTO DATA(WA_WFA_TS_WRKRULE_EN_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WFA_TS_WRKRULE_EN_DATA>-SPLIT_SHIFT = 1.
<WFA_TS_WRKRULE_EN_DATA>-SPECIAL_DAY = 1.
<WFA_TS_WRKRULE_EN_DATA>-FAIRNESS_RULE = 1.
<WFA_TS_WRKRULE_EN_DATA>-REST_RULE = 1.
<WFA_TS_WRKRULE_EN_DATA>-ACTUAL_HOURS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WFA_TS_WRKRULE_EN_DATA-CONTRACTHRESHOLD, sy-vline,
  WA_WFA_TS_WRKRULE_EN_DATA-EXCEPTION_CALC, sy-vline,
  WA_WFA_TS_WRKRULE_EN_DATA-SUNDAY_OFF, sy-vline,
  WA_WFA_TS_WRKRULE_EN_DATA-MONDAY_OFF, sy-vline,
  WA_WFA_TS_WRKRULE_EN_DATA-TUESDAY_OFF, sy-vline,
  WA_WFA_TS_WRKRULE_EN_DATA-WEDNESDAY_OFF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WFA_TS_WRKRULE_EN_DATA 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_WFA_TS_WRKRULE_EN_DATA 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_WFA_TS_WRKRULE_EN_DATA INTO WA_WFA_TS_WRKRULE_EN_DATA.


*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_WFA_TS_WRKRULE_EN_DATA_STR, 
SPLIT_SHIFT TYPE STRING,
SPECIAL_DAY TYPE STRING,
FAIRNESS_RULE TYPE STRING,
REST_RULE TYPE STRING,
ACTUAL_HOURS TYPE STRING,
CONTRACTHRESHOLD TYPE STRING,
EXCEPTION_CALC TYPE STRING,
SUNDAY_OFF TYPE STRING,
MONDAY_OFF TYPE STRING,
TUESDAY_OFF TYPE STRING,
WEDNESDAY_OFF TYPE STRING,
THURSDAY_OFF TYPE STRING,
FRIDAY_OFF TYPE STRING,
SATURDAY_OFF TYPE STRING,
FULL_WEEKEND_OFF TYPE STRING,
PART_WEEKEND_OFF TYPE STRING,
MAX_AVG_HOURS TYPE STRING,
MAX_AVG_DAYS TYPE STRING,
MAX_OT_HOURS TYPE STRING,
COUNT_PAIDLEAVE TYPE STRING,
ALLOW_WR_ROT TYPE STRING,
SNAME TYPE STRING,
LNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WFA_TS_WRKRULE_EN_DATA_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_WFA_TS_WRKRULE_EN_DATA_STR-SPLIT_SHIFT sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-SPECIAL_DAY sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-FAIRNESS_RULE sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-REST_RULE sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-ACTUAL_HOURS sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-CONTRACTHRESHOLD sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-EXCEPTION_CALC sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-SUNDAY_OFF sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-MONDAY_OFF sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-TUESDAY_OFF sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-WEDNESDAY_OFF sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-THURSDAY_OFF sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-FRIDAY_OFF sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-SATURDAY_OFF sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-FULL_WEEKEND_OFF sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-PART_WEEKEND_OFF sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-MAX_AVG_HOURS sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-MAX_AVG_DAYS sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-MAX_OT_HOURS sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-COUNT_PAIDLEAVE sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-ALLOW_WR_ROT sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-SNAME sy-vline 
WA_WFA_TS_WRKRULE_EN_DATA_STR-LNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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