ABAP Select data from SAP table WFDBPS_TIMESPEC_RULE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WFDBPS_TIMESPEC_RULE
*  INTO TABLE @DATA(IT_WFDBPS_TIMESPEC_RULE2).
*--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_WFDBPS_TIMESPEC_RULE INDEX 1 INTO DATA(WA_WFDBPS_TIMESPEC_RULE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WFDBPS_TIMESPEC_RULE>-EDITABLE = 1.
<WFDBPS_TIMESPEC_RULE>-TIMESPECTYPE = 1.
<WFDBPS_TIMESPEC_RULE>-TIMESPEC_GUID = 1.
<WFDBPS_TIMESPEC_RULE>-RULE_TYPE = 1.
<WFDBPS_TIMESPEC_RULE>-RULE_DESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WFDBPS_TIMESPEC_RULE-FACTORY_CALENDAR, sy-vline,
  WA_WFDBPS_TIMESPEC_RULE-START_DATE, sy-vline,
  WA_WFDBPS_TIMESPEC_RULE-END_DATE, sy-vline,
  WA_WFDBPS_TIMESPEC_RULE-TIME_FROM, sy-vline,
  WA_WFDBPS_TIMESPEC_RULE-TIME_TO, sy-vline,
  WA_WFDBPS_TIMESPEC_RULE-TZONE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WFDBPS_TIMESPEC_RULE 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_WFDBPS_TIMESPEC_RULE 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_WFDBPS_TIMESPEC_RULE INTO WA_WFDBPS_TIMESPEC_RULE.


*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_WFDBPS_TIMESPEC_RULE_STR, 
EDITABLE TYPE STRING,
TIMESPECTYPE TYPE STRING,
TIMESPEC_GUID TYPE STRING,
RULE_TYPE TYPE STRING,
RULE_DESCRIPTION TYPE STRING,
FACTORY_CALENDAR TYPE STRING,
START_DATE TYPE STRING,
END_DATE TYPE STRING,
TIME_FROM TYPE STRING,
TIME_TO TYPE STRING,
TZONE TYPE STRING,
INTERVALS TYPE STRING,
WEEKS TYPE STRING,
MONDAY TYPE STRING,
TUESDAY TYPE STRING,
WEDNESDAY TYPE STRING,
THURSDAY TYPE STRING,
FRIDAY TYPE STRING,
SATURDAY TYPE STRING,
SUNDAY TYPE STRING,
R_DAYS TYPE STRING,
R_MONTH TYPE STRING,
DAY_NR TYPE STRING,
WEEKDAY_NR TYPE STRING,
R_MONTHS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WFDBPS_TIMESPEC_RULE_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_WFDBPS_TIMESPEC_RULE_STR-EDITABLE sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-TIMESPECTYPE sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-TIMESPEC_GUID sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-RULE_TYPE sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-RULE_DESCRIPTION sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-FACTORY_CALENDAR sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-START_DATE sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-END_DATE sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-TIME_FROM sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-TIME_TO sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-TZONE sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-INTERVALS sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-WEEKS sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-MONDAY sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-TUESDAY sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-WEDNESDAY sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-THURSDAY sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-FRIDAY sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-SATURDAY sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-SUNDAY sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-R_DAYS sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-R_MONTH sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-DAY_NR sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-WEEKDAY_NR sy-vline 
WA_WFDBPS_TIMESPEC_RULE_STR-R_MONTHS sy-vline      INTO ld_text SEPARATED BY SPACE.

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