ABAP Select data from SAP table CRMS_WFD_AVAILABILITY 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 CRMS_WFD_AVAILABILITY 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 CRMS_WFD_AVAILABILITY. 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 CRMS_WFD_AVAILABILITY 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_CRMS_WFD_AVAILABILITY TYPE STANDARD TABLE OF CRMS_WFD_AVAILABILITY,
      WA_CRMS_WFD_AVAILABILITY TYPE CRMS_WFD_AVAILABILITY,
      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: <CRMS_WFD_AVAILABILITY> TYPE CRMS_WFD_AVAILABILITY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS_WFD_AVAILABILITY
*  INTO TABLE @DATA(IT_CRMS_WFD_AVAILABILITY2).
*--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_CRMS_WFD_AVAILABILITY INDEX 1 INTO DATA(WA_CRMS_WFD_AVAILABILITY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS_WFD_AVAILABILITY>-TEMPLATE_LINK_ID = 1.
<CRMS_WFD_AVAILABILITY>-TEMPLATE_KEY = 1.
<CRMS_WFD_AVAILABILITY>-TEMPLATE_DESCRIPTION = 1.
<CRMS_WFD_AVAILABILITY>-RULE_ID = 1.
<CRMS_WFD_AVAILABILITY>-RULE_DESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS_WFD_AVAILABILITY-VALID_FROM, sy-vline,
  WA_CRMS_WFD_AVAILABILITY-VALID_TO, sy-vline,
  WA_CRMS_WFD_AVAILABILITY-TIMESPEC_GUID, sy-vline,
  WA_CRMS_WFD_AVAILABILITY-TIMESPECTYPE, sy-vline,
  WA_CRMS_WFD_AVAILABILITY-RULE_TYPE, sy-vline,
  WA_CRMS_WFD_AVAILABILITY-FACTORY_CALENDAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS_WFD_AVAILABILITY 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_CRMS_WFD_AVAILABILITY 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_CRMS_WFD_AVAILABILITY INTO WA_CRMS_WFD_AVAILABILITY.


*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_CRMS_WFD_AVAILABILITY_STR, 
TEMPLATE_LINK_ID TYPE STRING,
TEMPLATE_KEY TYPE STRING,
TEMPLATE_DESCRIPTION TYPE STRING,
RULE_ID TYPE STRING,
RULE_DESCRIPTION TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
TIMESPEC_GUID TYPE STRING,
TIMESPECTYPE TYPE STRING,
RULE_TYPE 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,
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_CRMS_WFD_AVAILABILITY_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_CRMS_WFD_AVAILABILITY_STR-TEMPLATE_LINK_ID sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-TEMPLATE_KEY sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-TEMPLATE_DESCRIPTION sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-RULE_ID sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-RULE_DESCRIPTION sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-VALID_FROM sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-VALID_TO sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-TIMESPEC_GUID sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-TIMESPECTYPE sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-RULE_TYPE sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-FACTORY_CALENDAR sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-START_DATE sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-END_DATE sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-TIME_FROM sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-TIME_TO sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-TZONE sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-WEEKS sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-MONDAY sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-TUESDAY sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-WEDNESDAY sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-THURSDAY sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-FRIDAY sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-SATURDAY sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-SUNDAY sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-R_DAYS sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-R_MONTH sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-DAY_NR sy-vline 
WA_CRMS_WFD_AVAILABILITY_STR-WEEKDAY_NR sy-vline 
WA_CRMS_WFD_AVAILABILITY_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.