ABAP Select data from SAP table WFAS_EMP_INT_WORKRULES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WFAS_EMP_INT_WORKRULES
*  INTO TABLE @DATA(IT_WFAS_EMP_INT_WORKRULES2).
*--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_WFAS_EMP_INT_WORKRULES INDEX 1 INTO DATA(WA_WFAS_EMP_INT_WORKRULES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WFAS_EMP_INT_WORKRULES>-WORKRULESET_ID = 1.
<WFAS_EMP_INT_WORKRULES>-TEMPLATE_ID = 1.
<WFAS_EMP_INT_WORKRULES>-MINHRSWEEK = 1.
<WFAS_EMP_INT_WORKRULES>-MAXHRSWEEK = 1.
<WFAS_EMP_INT_WORKRULES>-MINHOURSSHIFT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WFAS_EMP_INT_WORKRULES-MAXHOURSSHIFT, sy-vline,
  WA_WFAS_EMP_INT_WORKRULES-WKENDMAXHRSSHIFT, sy-vline,
  WA_WFAS_EMP_INT_WORKRULES-MAXSCHEDDAYSWEEK, sy-vline,
  WA_WFAS_EMP_INT_WORKRULES-MINTIMBTSHIFTS, sy-vline,
  WA_WFAS_EMP_INT_WORKRULES-MAXCONSECUTIVEDS, sy-vline,
  WA_WFAS_EMP_INT_WORKRULES-TWODAYSOFFINROW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WFAS_EMP_INT_WORKRULES 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_WFAS_EMP_INT_WORKRULES 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_WFAS_EMP_INT_WORKRULES INTO WA_WFAS_EMP_INT_WORKRULES.


*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 TEMPLATE_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WFAS_EMP_INT_WORKRULES-TEMPLATE_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WFAS_EMP_INT_WORKRULES-TEMPLATE_ID.
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_WFAS_EMP_INT_WORKRULES_STR, 
WORKRULESET_ID TYPE STRING,
TEMPLATE_ID TYPE STRING,
MINHRSWEEK TYPE STRING,
MAXHRSWEEK TYPE STRING,
MINHOURSSHIFT TYPE STRING,
MAXHOURSSHIFT TYPE STRING,
WKENDMAXHRSSHIFT TYPE STRING,
MAXSCHEDDAYSWEEK TYPE STRING,
MINTIMBTSHIFTS TYPE STRING,
MAXCONSECUTIVEDS TYPE STRING,
TWODAYSOFFINROW TYPE STRING,
TWODAYSOFFWKEND TYPE STRING,
ALTWEEKENDSOFF TYPE STRING,
HOLIDAYOFF TYPE STRING,
ALLOWOVERTIME TYPE STRING,
MAXOTDAY TYPE STRING,
MAXOTWEEK TYPE STRING,
SPLIT_SHIFTS TYPE STRING,
MAX_PARTS_DAY TYPE STRING,
MAX_SPLIT_DAYS TYPE STRING,
MIN_HOUR_PART TYPE STRING,
MIN_GAP_PART TYPE STRING,
MAX_GAP_PART TYPE STRING,
SPECIAL_MIN1 TYPE STRING,
SPECIAL_MAX1 TYPE STRING,
SPECIAL_MIN2 TYPE STRING,
SPECIAL_MAX2 TYPE STRING,
SPECIAL_MIN3 TYPE STRING,
SPECIAL_MAX3 TYPE STRING,
SPECIAL_MIN4 TYPE STRING,
SPECIAL_MAX4 TYPE STRING,
SPECIAL_MIN5 TYPE STRING,
SPECIAL_MAX5 TYPE STRING,
SPECIAL_MIN6 TYPE STRING,
SPECIAL_MAX6 TYPE STRING,
ONE_WEEK_REST TYPE STRING,
TWO_WEEK_REST TYPE STRING,
SPECIAL_DAYP1 TYPE STRING,
SPECIAL_DAYP_M1 TYPE STRING,
SPECIAL_DAYP2 TYPE STRING,
SPECIAL_DAYP_M2 TYPE STRING,
SPECIAL_DAYP3 TYPE STRING,
SPECIAL_DAYP_M3 TYPE STRING,
SPECIAL_DAYP4 TYPE STRING,
SPECIAL_DAYP_M4 TYPE STRING,
SPECIAL_DAYP5 TYPE STRING,
SPECIAL_DAYP_M5 TYPE STRING,
SPECIAL_DAYP6 TYPE STRING,
SPECIAL_DAYP_M6 TYPE STRING,
MON_OFF_VAL TYPE STRING,
MON_OFF_WEEK TYPE STRING,
TUE_OFF_VAL TYPE STRING,
TUE_OFF_WEEK TYPE STRING,
WED_OFF_VAL TYPE STRING,
WED_OFF_WEEK TYPE STRING,
THU_OFF_VAL TYPE STRING,
THU_OFF_WEEK TYPE STRING,
FRI_OFF_VAL TYPE STRING,
FRI_OFF_WEEK TYPE STRING,
SAT_OFF_VAL TYPE STRING,
SAT_OFF_WEEK TYPE STRING,
SUN_OFF_VAL TYPE STRING,
SUN_OFF_WEEK TYPE STRING,
MAX_AVG_HR_VAL TYPE STRING,
MAX_AVG_HR_WEEK TYPE STRING,
MAX_AVG_D_VAL TYPE STRING,
MAX_AVG_D_WEEK TYPE STRING,
MAX_AVG_OT_VAL TYPE STRING,
MAX_AVG_OT_WEEK TYPE STRING,
PART_WD_OFF_VAL TYPE STRING,
PART_WD_OFF_WEEK TYPE STRING,
FULL_WD_OFF_VAL TYPE STRING,
FULL_WD_OFF_WEEK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WFAS_EMP_INT_WORKRULES_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_WFAS_EMP_INT_WORKRULES_STR-WORKRULESET_ID sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-TEMPLATE_ID sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MINHRSWEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAXHRSWEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MINHOURSSHIFT sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAXHOURSSHIFT sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-WKENDMAXHRSSHIFT sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAXSCHEDDAYSWEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MINTIMBTSHIFTS sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAXCONSECUTIVEDS sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-TWODAYSOFFINROW sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-TWODAYSOFFWKEND sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-ALTWEEKENDSOFF sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-HOLIDAYOFF sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-ALLOWOVERTIME sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAXOTDAY sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAXOTWEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPLIT_SHIFTS sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAX_PARTS_DAY sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAX_SPLIT_DAYS sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MIN_HOUR_PART sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MIN_GAP_PART sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAX_GAP_PART sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_MIN1 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_MAX1 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_MIN2 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_MAX2 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_MIN3 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_MAX3 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_MIN4 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_MAX4 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_MIN5 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_MAX5 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_MIN6 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_MAX6 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-ONE_WEEK_REST sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-TWO_WEEK_REST sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_DAYP1 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_DAYP_M1 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_DAYP2 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_DAYP_M2 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_DAYP3 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_DAYP_M3 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_DAYP4 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_DAYP_M4 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_DAYP5 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_DAYP_M5 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_DAYP6 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SPECIAL_DAYP_M6 sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MON_OFF_VAL sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MON_OFF_WEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-TUE_OFF_VAL sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-TUE_OFF_WEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-WED_OFF_VAL sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-WED_OFF_WEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-THU_OFF_VAL sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-THU_OFF_WEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-FRI_OFF_VAL sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-FRI_OFF_WEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SAT_OFF_VAL sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SAT_OFF_WEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SUN_OFF_VAL sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-SUN_OFF_WEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAX_AVG_HR_VAL sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAX_AVG_HR_WEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAX_AVG_D_VAL sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAX_AVG_D_WEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAX_AVG_OT_VAL sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-MAX_AVG_OT_WEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-PART_WD_OFF_VAL sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-PART_WD_OFF_WEEK sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-FULL_WD_OFF_VAL sy-vline 
WA_WFAS_EMP_INT_WORKRULES_STR-FULL_WD_OFF_WEEK sy-vline      INTO ld_text SEPARATED BY SPACE.

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